TY  - RPRT
TI  - Calcified nucleus pulposus visualizing disk rupture in plain roentgenogram.
AU  - L Walk
PY  - 1976
DO  - 10.1055/s-0029-1230289
UR  - https://pubmed.ncbi.nlm.nih.gov/130327/
ID  - 130327
ER  -