TY  - RPRT
TI  - Ankylosing spondylitis and auto-immunity.
AU  - G O Cowan
PY  - 1973
DO  - 10.1136/pgmj.49.575.667
UR  - https://pubmed.ncbi.nlm.nih.gov/4788922/
ID  - 4788922
ER  -