TY  - JOUR
AU  - Milovanović, Petar
AU  - Rakočević, Zlatko Lj.
AU  - Djonic, Danijela
AU  - Živković, Vladimir
AU  - Hahn, Michael
AU  - Nikolic, Slobodan
AU  - Amling, Michael
AU  - Busse, Bjoern
AU  - Đurić, Marija
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6001
AB  - To unravel the origins of decreased bone strength in the superolateral femoral neck, we assessed bone structural features across multiple length scales at this cortical fracture initiating region in postmenopausal women with hip fracture and in aged-matched controls. Our combined methodological approach encompassed atomic force microscopy (AFM) characterization of cortical bone nano-structure, assessment of mineral content/distribution via quantitative backscattered electron imaging (qBEI), measurement of bone material properties by reference point indentation, aswell as evaluation of cortical micro-architecture and osteocyte lacunar density. Our findings revealed a wide range of differences between the fracture group and the controls, suggesting a number of detrimental changes at various levels of cortical bone hierarchical organization that may render bone fragile. Namely, mineral crystals at external cortical bone surfaces of the fracture group were larger (65.22 nm +/- 41.21 nm vs. 36.75 nm +/- 18.49 nm, p LT 0.001), and a shift to a higher mineral content and more homogenous mineralization profile as revealed via qBEI were found in the bone matrix of the fracture group. Fracture cases showed nearly 35% higher cortical porosity and showed significantly reduced osteocyte lacunar density compared to controls (226 +/- 27 vs. 247 +/- 32 #/mm2, p= 0.05). Along with increased crystal size, a shift towards higher mineralization and a tendency to increased cortical porosity and reduced osteocyte lacunar number delineate that cortical bone of the superolateral femoral neck bears distinct signs of fragility at various levels of its structural organization. These results contribute to the understanding of hierarchical bone structure changes in age-related fragility. (C) 2014 Elsevier Inc. All rights reserved.
T2  - Experimental Gerontology
T1  - Nano-structural, compositional and micro-architectural signs of cortical bone fragility at the superolateral femoral neck in elderly hip fracture patients vs. healthy aged controls
VL  - 55
SP  - 19
EP  - 28
DO  - 10.1016/j.exger.2014.03.001
ER  - 

@article{
author = "Milovanović, Petar and Rakočević, Zlatko Lj. and Djonic, Danijela and Živković, Vladimir and Hahn, Michael and Nikolic, Slobodan and Amling, Michael and Busse, Bjoern and Đurić, Marija",
year = "2014",
abstract = "To unravel the origins of decreased bone strength in the superolateral femoral neck, we assessed bone structural features across multiple length scales at this cortical fracture initiating region in postmenopausal women with hip fracture and in aged-matched controls. Our combined methodological approach encompassed atomic force microscopy (AFM) characterization of cortical bone nano-structure, assessment of mineral content/distribution via quantitative backscattered electron imaging (qBEI), measurement of bone material properties by reference point indentation, aswell as evaluation of cortical micro-architecture and osteocyte lacunar density. Our findings revealed a wide range of differences between the fracture group and the controls, suggesting a number of detrimental changes at various levels of cortical bone hierarchical organization that may render bone fragile. Namely, mineral crystals at external cortical bone surfaces of the fracture group were larger (65.22 nm +/- 41.21 nm vs. 36.75 nm +/- 18.49 nm, p LT 0.001), and a shift to a higher mineral content and more homogenous mineralization profile as revealed via qBEI were found in the bone matrix of the fracture group. Fracture cases showed nearly 35% higher cortical porosity and showed significantly reduced osteocyte lacunar density compared to controls (226 +/- 27 vs. 247 +/- 32 #/mm2, p= 0.05). Along with increased crystal size, a shift towards higher mineralization and a tendency to increased cortical porosity and reduced osteocyte lacunar number delineate that cortical bone of the superolateral femoral neck bears distinct signs of fragility at various levels of its structural organization. These results contribute to the understanding of hierarchical bone structure changes in age-related fragility. (C) 2014 Elsevier Inc. All rights reserved.",
journal = "Experimental Gerontology",
title = "Nano-structural, compositional and micro-architectural signs of cortical bone fragility at the superolateral femoral neck in elderly hip fracture patients vs. healthy aged controls",
volume = "55",
pages = "19-28",
doi = "10.1016/j.exger.2014.03.001"
}

Milovanović, P., Rakočević, Z. Lj., Djonic, D., Živković, V., Hahn, M., Nikolic, S., Amling, M., Busse, B.,& Đurić, M.. (2014). Nano-structural, compositional and micro-architectural signs of cortical bone fragility at the superolateral femoral neck in elderly hip fracture patients vs. healthy aged controls. in Experimental Gerontology, 55, 19-28.
https://doi.org/10.1016/j.exger.2014.03.001

Milovanović P, Rakočević ZL, Djonic D, Živković V, Hahn M, Nikolic S, Amling M, Busse B, Đurić M. Nano-structural, compositional and micro-architectural signs of cortical bone fragility at the superolateral femoral neck in elderly hip fracture patients vs. healthy aged controls. in Experimental Gerontology. 2014;55:19-28.
doi:10.1016/j.exger.2014.03.001 .

Milovanović, Petar, Rakočević, Zlatko Lj., Djonic, Danijela, Živković, Vladimir, Hahn, Michael, Nikolic, Slobodan, Amling, Michael, Busse, Bjoern, Đurić, Marija, "Nano-structural, compositional and micro-architectural signs of cortical bone fragility at the superolateral femoral neck in elderly hip fracture patients vs. healthy aged controls" in Experimental Gerontology, 55 (2014):19-28,
https://doi.org/10.1016/j.exger.2014.03.001 . .

TY  - JOUR
AU  - Zelic, Ksenija
AU  - Djonic, Danijela
AU  - Nešković, Olivera M.
AU  - Stoiljković, Milovan
AU  - Nikolic, Slobodan
AU  - Živković, Vladimir
AU  - Đurić, Marija
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5654
AB  - In 2011, small mass grave with completely skeletonized remains was discovered in Belgrade suburb. An eyewitness claimed that skeletons belonged to German soldiers killed in WWII. Anthropologists were engaged to investigate whether the skeletal remains correspond to the indicated German group or represent more recent case requiring court trial. Numerous dental restorations were noticed. Owing to the fact that different dental materials were used in dental practice at certain times, the aim of this study was to explore whether analysis of dental restorations could help in identification and estimation of time since death. Inductively coupled plasma optical emission spectrometry revealed that dental fillings corresponded to copper amalgam, conventional silver amalgam, silicophosphate cement, and zinc phosphate cement. Chemical results combined with anthropological and historical facts suggest that the individuals lived before the 1960s in country with well-developed dental service at that time. Therefore, chemical analysis of dental fillings was useful to distinguish between skeletal remains that are too old to be of forensic interest and the remains relevant to legal investigations.
T2  - Journal of Forensic Sciences
T1  - Forensic or Archaeological Issue: Is Chemical Analysis of Dental Restorations Helpful in Assessing Time Since Death and Identification of Skeletonized Human Remains?
VL  - 58
IS  - 5
SP  - 1284
EP  - 1288
DO  - 10.1111/1556-4029.12228
ER  - 

@article{
author = "Zelic, Ksenija and Djonic, Danijela and Nešković, Olivera M. and Stoiljković, Milovan and Nikolic, Slobodan and Živković, Vladimir and Đurić, Marija",
year = "2013",
abstract = "In 2011, small mass grave with completely skeletonized remains was discovered in Belgrade suburb. An eyewitness claimed that skeletons belonged to German soldiers killed in WWII. Anthropologists were engaged to investigate whether the skeletal remains correspond to the indicated German group or represent more recent case requiring court trial. Numerous dental restorations were noticed. Owing to the fact that different dental materials were used in dental practice at certain times, the aim of this study was to explore whether analysis of dental restorations could help in identification and estimation of time since death. Inductively coupled plasma optical emission spectrometry revealed that dental fillings corresponded to copper amalgam, conventional silver amalgam, silicophosphate cement, and zinc phosphate cement. Chemical results combined with anthropological and historical facts suggest that the individuals lived before the 1960s in country with well-developed dental service at that time. Therefore, chemical analysis of dental fillings was useful to distinguish between skeletal remains that are too old to be of forensic interest and the remains relevant to legal investigations.",
journal = "Journal of Forensic Sciences",
title = "Forensic or Archaeological Issue: Is Chemical Analysis of Dental Restorations Helpful in Assessing Time Since Death and Identification of Skeletonized Human Remains?",
volume = "58",
number = "5",
pages = "1284-1288",
doi = "10.1111/1556-4029.12228"
}

Zelic, K., Djonic, D., Nešković, O. M., Stoiljković, M., Nikolic, S., Živković, V.,& Đurić, M.. (2013). Forensic or Archaeological Issue: Is Chemical Analysis of Dental Restorations Helpful in Assessing Time Since Death and Identification of Skeletonized Human Remains?. in Journal of Forensic Sciences, 58(5), 1284-1288.
https://doi.org/10.1111/1556-4029.12228

Zelic K, Djonic D, Nešković OM, Stoiljković M, Nikolic S, Živković V, Đurić M. Forensic or Archaeological Issue: Is Chemical Analysis of Dental Restorations Helpful in Assessing Time Since Death and Identification of Skeletonized Human Remains?. in Journal of Forensic Sciences. 2013;58(5):1284-1288.
doi:10.1111/1556-4029.12228 .

Zelic, Ksenija, Djonic, Danijela, Nešković, Olivera M., Stoiljković, Milovan, Nikolic, Slobodan, Živković, Vladimir, Đurić, Marija, "Forensic or Archaeological Issue: Is Chemical Analysis of Dental Restorations Helpful in Assessing Time Since Death and Identification of Skeletonized Human Remains?" in Journal of Forensic Sciences, 58, no. 5 (2013):1284-1288,
https://doi.org/10.1111/1556-4029.12228 . .

TY  - JOUR
AU  - Milovanović, Petar
AU  - Đurić, Marija
AU  - Nešković, Olivera M.
AU  - Djonic, Danijela
AU  - Potočnik, Jelena
AU  - Nikolic, Slobodan
AU  - Stoiljković, Milovan
AU  - Živković, Vladimir
AU  - Rakočević, Zlatko Lj.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5687
AB  - On the basis of the suggestion that bone nanostructure bears tissue age information and may reflect surface deposition/modification processes, we performed nanoscale characterization of the external cortical bone surface at the femoral neck in women using atomic force microscopy (AFM). The specific aims were to assess age-related differences in bone nanostructure and explore the existence of nanostructural traces of potential bone apposition at this surface. Our findings revealed that the external cortical surface represents a continuous phase composed of densely packed mineral grains. Although the grains varied in size and shape, there was a domination of small grains indicative of freshly deposited bone (mean grain size: young, 35 nm; old, 37 nm; p. 0.05). Advanced quantitative analysis of surface morphological patterns revealed comparable roughness and complexity of the surface, suggesting a similar rate of mineral particle deposition at the surface in both groups. Calcium/phosphorus ratio, a measure of bone tissue age, was within the same range in both groups. In summary, our AFM analyses showed consistent nanostructural and compositional bone features, suggesting existence of new bone at the periosteal bone surface in both young and elderly women. Considering observed age-related increase in the neck diameter, AFM findings may support the theory of continuous bone apposition at the periosteal surface.
T2  - Microscopy and Microanalysis
T1  - Atomic Force Microscopy Characterization of the External Cortical Bone Surface in Young and Elderly Women: Potential Nanostructural Traces of Periosteal Bone Apposition During Aging
VL  - 19
IS  - 5
SP  - 1341
EP  - 1349
DO  - 10.1017/S1431927613001761
ER  - 

@article{
author = "Milovanović, Petar and Đurić, Marija and Nešković, Olivera M. and Djonic, Danijela and Potočnik, Jelena and Nikolic, Slobodan and Stoiljković, Milovan and Živković, Vladimir and Rakočević, Zlatko Lj.",
year = "2013",
abstract = "On the basis of the suggestion that bone nanostructure bears tissue age information and may reflect surface deposition/modification processes, we performed nanoscale characterization of the external cortical bone surface at the femoral neck in women using atomic force microscopy (AFM). The specific aims were to assess age-related differences in bone nanostructure and explore the existence of nanostructural traces of potential bone apposition at this surface. Our findings revealed that the external cortical surface represents a continuous phase composed of densely packed mineral grains. Although the grains varied in size and shape, there was a domination of small grains indicative of freshly deposited bone (mean grain size: young, 35 nm; old, 37 nm; p. 0.05). Advanced quantitative analysis of surface morphological patterns revealed comparable roughness and complexity of the surface, suggesting a similar rate of mineral particle deposition at the surface in both groups. Calcium/phosphorus ratio, a measure of bone tissue age, was within the same range in both groups. In summary, our AFM analyses showed consistent nanostructural and compositional bone features, suggesting existence of new bone at the periosteal bone surface in both young and elderly women. Considering observed age-related increase in the neck diameter, AFM findings may support the theory of continuous bone apposition at the periosteal surface.",
journal = "Microscopy and Microanalysis",
title = "Atomic Force Microscopy Characterization of the External Cortical Bone Surface in Young and Elderly Women: Potential Nanostructural Traces of Periosteal Bone Apposition During Aging",
volume = "19",
number = "5",
pages = "1341-1349",
doi = "10.1017/S1431927613001761"
}

Milovanović, P., Đurić, M., Nešković, O. M., Djonic, D., Potočnik, J., Nikolic, S., Stoiljković, M., Živković, V.,& Rakočević, Z. Lj.. (2013). Atomic Force Microscopy Characterization of the External Cortical Bone Surface in Young and Elderly Women: Potential Nanostructural Traces of Periosteal Bone Apposition During Aging. in Microscopy and Microanalysis, 19(5), 1341-1349.
https://doi.org/10.1017/S1431927613001761

Milovanović P, Đurić M, Nešković OM, Djonic D, Potočnik J, Nikolic S, Stoiljković M, Živković V, Rakočević ZL. Atomic Force Microscopy Characterization of the External Cortical Bone Surface in Young and Elderly Women: Potential Nanostructural Traces of Periosteal Bone Apposition During Aging. in Microscopy and Microanalysis. 2013;19(5):1341-1349.
doi:10.1017/S1431927613001761 .

Milovanović, Petar, Đurić, Marija, Nešković, Olivera M., Djonic, Danijela, Potočnik, Jelena, Nikolic, Slobodan, Stoiljković, Milovan, Živković, Vladimir, Rakočević, Zlatko Lj., "Atomic Force Microscopy Characterization of the External Cortical Bone Surface in Young and Elderly Women: Potential Nanostructural Traces of Periosteal Bone Apposition During Aging" in Microscopy and Microanalysis, 19, no. 5 (2013):1341-1349,
https://doi.org/10.1017/S1431927613001761 . .

TY  - JOUR
AU  - Milovanović, Petar
AU  - Potočnik, Jelena
AU  - Djonic, Danijela
AU  - Nikolic, Slobodan
AU  - Živković, Vladimir
AU  - Đurić, Marija
AU  - Rakočević, Zlatko Lj.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4716
AB  - Despite general belief that the mechanical properties of bone material contribute to whole bone strength, it is still obscure what the age effects are on mechanical behavior of the bone material, particularly in the case of the femoral neck trabeculae. In this study, atomic force microscopy was used for imaging and measuring the size of mineral grains, as well as nano-scale mechanical characterization (nanoindentation) of the bone mineralized matrix of trabeculae, with the aim to explore the age effects on bone elasticity and give new insight into age-related bone fragility. The bone samples in this study comprised trabecular bone specimens of the femoral neck region, collected from eight skeletal healthy women (five young adults: 27-38 yrs., three elderly: 83-94 yrs.) at autopsy. Bone trabeculae in the elderly displayed a higher modulus and nanohardness, signifying a decreased amount of energy that can be accommodated by the bone tissue during loading. Regression analysis revealed that nearly 65% of variability in the bone matrix elastic modulus can be statistically explained by the changes in size of the matrix mineral grains. This study revealed that the bone trabeculae of elderly women express less elastic behavior at the material level, which makes them more vulnerable to unusual impact loads originating from a fall. The observed age-related structural and mechanical alteration at the bone material level adds new evidence for understanding why hip fractures are more frequent in elderly women. (C) 2011 Elsevier Inc. All rights reserved.
T2  - Experimental Gerontology
T1  - Age-related deterioration in trabecular bone mechanical properties at material level: Nanoindentation study of the femoral neck in women by using AFM
VL  - 47
IS  - 2
SP  - 154
EP  - 159
DO  - 10.1016/j.exger.2011.11.011
ER  - 

@article{
author = "Milovanović, Petar and Potočnik, Jelena and Djonic, Danijela and Nikolic, Slobodan and Živković, Vladimir and Đurić, Marija and Rakočević, Zlatko Lj.",
year = "2012",
abstract = "Despite general belief that the mechanical properties of bone material contribute to whole bone strength, it is still obscure what the age effects are on mechanical behavior of the bone material, particularly in the case of the femoral neck trabeculae. In this study, atomic force microscopy was used for imaging and measuring the size of mineral grains, as well as nano-scale mechanical characterization (nanoindentation) of the bone mineralized matrix of trabeculae, with the aim to explore the age effects on bone elasticity and give new insight into age-related bone fragility. The bone samples in this study comprised trabecular bone specimens of the femoral neck region, collected from eight skeletal healthy women (five young adults: 27-38 yrs., three elderly: 83-94 yrs.) at autopsy. Bone trabeculae in the elderly displayed a higher modulus and nanohardness, signifying a decreased amount of energy that can be accommodated by the bone tissue during loading. Regression analysis revealed that nearly 65% of variability in the bone matrix elastic modulus can be statistically explained by the changes in size of the matrix mineral grains. This study revealed that the bone trabeculae of elderly women express less elastic behavior at the material level, which makes them more vulnerable to unusual impact loads originating from a fall. The observed age-related structural and mechanical alteration at the bone material level adds new evidence for understanding why hip fractures are more frequent in elderly women. (C) 2011 Elsevier Inc. All rights reserved.",
journal = "Experimental Gerontology",
title = "Age-related deterioration in trabecular bone mechanical properties at material level: Nanoindentation study of the femoral neck in women by using AFM",
volume = "47",
number = "2",
pages = "154-159",
doi = "10.1016/j.exger.2011.11.011"
}

Milovanović, P., Potočnik, J., Djonic, D., Nikolic, S., Živković, V., Đurić, M.,& Rakočević, Z. Lj.. (2012). Age-related deterioration in trabecular bone mechanical properties at material level: Nanoindentation study of the femoral neck in women by using AFM. in Experimental Gerontology, 47(2), 154-159.
https://doi.org/10.1016/j.exger.2011.11.011

Milovanović P, Potočnik J, Djonic D, Nikolic S, Živković V, Đurić M, Rakočević ZL. Age-related deterioration in trabecular bone mechanical properties at material level: Nanoindentation study of the femoral neck in women by using AFM. in Experimental Gerontology. 2012;47(2):154-159.
doi:10.1016/j.exger.2011.11.011 .

Milovanović, Petar, Potočnik, Jelena, Djonic, Danijela, Nikolic, Slobodan, Živković, Vladimir, Đurić, Marija, Rakočević, Zlatko Lj., "Age-related deterioration in trabecular bone mechanical properties at material level: Nanoindentation study of the femoral neck in women by using AFM" in Experimental Gerontology, 47, no. 2 (2012):154-159,
https://doi.org/10.1016/j.exger.2011.11.011 . .

TY  - JOUR
AU  - Milovanović, Petar
AU  - Potočnik, Jelena
AU  - Stoiljković, Milovan
AU  - Djonic, Danijela
AU  - Nikolic, Slobodan
AU  - Nešković, Olivera M.
AU  - Đurić, Marija
AU  - Rakočević, Zlatko Lj.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4456
AB  - Despite interest in investigating age-related hip fractures, the determinants of decreased bone strength in advanced age are not clear enough. Hitherto it has been obscure how the aging process affects the femoral neck nanostructure and composition, particularly in the lateral subregion of the femoral neck, which is considered as a fracture-initiating site. The femoral bone samples used in this study were obtained at autopsy in 10 women without skeletal disease (five younger: aged 20-40 years, and five elderly: aged 73-94 years). Atomic force microscopy (AFM) was applied to explore the mineral grain size in situ in young vs. old trabecular bone samples from the lateral femoral neck. The chemical compositions of the samples were determined using inductively coupled plasma optical emission spectroscopy and direct current argon arc plasma optical emission spectrometry. Our AFM study revealed differences in trabecular bone nanostructure between young and elderly women. The mineral grain size in the trabeculae of the old women was larger than that in the young (median: 95 vs. 59 nm), with a particular bimodal distribution: 45% were small grains (similar to the young) and the rest were larger. Since chemical analyses showed that levels of calcium and phosphorus were unchanged with age, our study suggests that during aging the existing bone mineral is reorganized and forms larger aggregates. Given the mechanical disadvantage of large-grained structures (decreased material strength), the observed nanostructural differences contribute to our understanding of the increased fragility of the lateral femoral neck in aged females. Moreover, increasing data on mineral grains in natural bone is essential for advancing calcium-phosphate ceramics for bone tissue replacement. (C) 2011 Acts Materialia Inc. Published by Elsevier Ltd. All rights reserved.
T2  - Acta Biomaterialia
T1  - Nanostructure and mineral composition of trabecular bone in the lateral femoral neck: Implications for bone fragility in elderly women
VL  - 7
IS  - 9
SP  - 3446
EP  - 3451
DO  - 10.1016/j.actbio.2011.05.028
ER  - 

@article{
author = "Milovanović, Petar and Potočnik, Jelena and Stoiljković, Milovan and Djonic, Danijela and Nikolic, Slobodan and Nešković, Olivera M. and Đurić, Marija and Rakočević, Zlatko Lj.",
year = "2011",
abstract = "Despite interest in investigating age-related hip fractures, the determinants of decreased bone strength in advanced age are not clear enough. Hitherto it has been obscure how the aging process affects the femoral neck nanostructure and composition, particularly in the lateral subregion of the femoral neck, which is considered as a fracture-initiating site. The femoral bone samples used in this study were obtained at autopsy in 10 women without skeletal disease (five younger: aged 20-40 years, and five elderly: aged 73-94 years). Atomic force microscopy (AFM) was applied to explore the mineral grain size in situ in young vs. old trabecular bone samples from the lateral femoral neck. The chemical compositions of the samples were determined using inductively coupled plasma optical emission spectroscopy and direct current argon arc plasma optical emission spectrometry. Our AFM study revealed differences in trabecular bone nanostructure between young and elderly women. The mineral grain size in the trabeculae of the old women was larger than that in the young (median: 95 vs. 59 nm), with a particular bimodal distribution: 45% were small grains (similar to the young) and the rest were larger. Since chemical analyses showed that levels of calcium and phosphorus were unchanged with age, our study suggests that during aging the existing bone mineral is reorganized and forms larger aggregates. Given the mechanical disadvantage of large-grained structures (decreased material strength), the observed nanostructural differences contribute to our understanding of the increased fragility of the lateral femoral neck in aged females. Moreover, increasing data on mineral grains in natural bone is essential for advancing calcium-phosphate ceramics for bone tissue replacement. (C) 2011 Acts Materialia Inc. Published by Elsevier Ltd. All rights reserved.",
journal = "Acta Biomaterialia",
title = "Nanostructure and mineral composition of trabecular bone in the lateral femoral neck: Implications for bone fragility in elderly women",
volume = "7",
number = "9",
pages = "3446-3451",
doi = "10.1016/j.actbio.2011.05.028"
}

Milovanović, P., Potočnik, J., Stoiljković, M., Djonic, D., Nikolic, S., Nešković, O. M., Đurić, M.,& Rakočević, Z. Lj.. (2011). Nanostructure and mineral composition of trabecular bone in the lateral femoral neck: Implications for bone fragility in elderly women. in Acta Biomaterialia, 7(9), 3446-3451.
https://doi.org/10.1016/j.actbio.2011.05.028

Milovanović P, Potočnik J, Stoiljković M, Djonic D, Nikolic S, Nešković OM, Đurić M, Rakočević ZL. Nanostructure and mineral composition of trabecular bone in the lateral femoral neck: Implications for bone fragility in elderly women. in Acta Biomaterialia. 2011;7(9):3446-3451.
doi:10.1016/j.actbio.2011.05.028 .

Milovanović, Petar, Potočnik, Jelena, Stoiljković, Milovan, Djonic, Danijela, Nikolic, Slobodan, Nešković, Olivera M., Đurić, Marija, Rakočević, Zlatko Lj., "Nanostructure and mineral composition of trabecular bone in the lateral femoral neck: Implications for bone fragility in elderly women" in Acta Biomaterialia, 7, no. 9 (2011):3446-3451,
https://doi.org/10.1016/j.actbio.2011.05.028 . .