@article{doi:10.1302/0301-620X.44B3.543,
author = {Jeffery, C. C.},
title = {SPONTANEOUS FRACTURES OF THE FEMORAL NECK},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {44-B},
number = {3},
pages = {543-549},
year = {1962},
doi = {10.1302/0301-620X.44B3.543},
url = {https://doi.org/10.1302/0301-620X.44B3.543}
}