TY  - JOUR
AU  - Pennal, George F.
AU  - Conn, Garson S.
AU  - McDonald, Glen
AU  - Dale, Gordon
AU  - Garside, Henry
DO  - doi:10.1302/0301-620X.54B3.442
UR  - https://doi.org/10.1302/0301-620X.54B3.442
TI  - MOTION STUDIES OF THE LUMBAR SPINE 
T2  - The Journal of Bone & Joint Surgery British Volume
VL  - 54-B
IS  - 3
PY  - 1972
SP  - 442
EP  - 452
ER  -