TY  - JOUR
AU  - Marshall, Robert
DO  - doi:10.1302/0301-620X.84B6.0840933b
UR  - https://doi.org/10.1302/0301-620X.84B6.0840933b
TI  - Masterclasses in spinal surgery
T2  - The Journal of Bone & Joint Surgery British Volume
VL  - 84-B
IS  - 6
PY  - 2002
SP  - 933
EP  - 934
ER  -