@article{doi:10.1302/0301-620X.43B2.346,
author = {Caldwell, R. A. and Collins, D. H.},
title = {ASSESSMENT OF VERTEBRAL OSTEOPOROSIS BY RADIOGRAPHIC AND CHEMICAL METHODS POST-MORTEM},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {43-B},
number = {2},
pages = {346-361},
year = {1961},
doi = {10.1302/0301-620X.43B2.346},
url = {https://doi.org/10.1302/0301-620X.43B2.346}
}