@article{doi:10.1302/0301-620X.71B3.2542341,
author = {Mackie, IG and Green, M and Clarke, H and Isaac, DH},
title = {Human bone microstructure studied by collagenase etching},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {71-B},
number = {3},
pages = {509-513},
year = {1989},
doi = {10.1302/0301-620X.71B3.2542341},
url = {https://doi.org/10.1302/0301-620X.71B3.2542341}
}