TY  - RPRT
TI  - Answer please. Spondylolysis.
AU  - R Hines
AU  - W A Grana
PY  - 1987
DO  - 10.3928/0147-7447-19871001-19
UR  - https://pubmed.ncbi.nlm.nih.gov/2960961/
ID  - 2960961
ER  -