@article{doi:10.1302/0301-620X.84B6.0840933b,
author = {Marshall, Robert},
title = {Masterclasses in spinal surgery},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {84-B},
number = {6},
pages = {933-934},
year = {2002},
doi = {10.1302/0301-620X.84B6.0840933b},
url = {https://doi.org/10.1302/0301-620X.84B6.0840933b}
}