@article{doi:10.1302/0301-620X.33B1.8,
author = {O'Connell, John E. A.},
title = {PROTRUSIONS OF THE LUMBAR INTERVERTEBRAL DISCS},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {33-B},
number = {1},
pages = {8-30},
year = {1951},
doi = {10.1302/0301-620X.33B1.8},
url = {https://doi.org/10.1302/0301-620X.33B1.8}
}