TY  - RPRT
TI  - Ankylosing spondylitis in Blacks.
AU  - G P Mulley
PY  - 1977
DO  - 10.1016/s0140-6736(77)92752-0
UR  - https://pubmed.ncbi.nlm.nih.gov/68308/
ID  - 68308
ER  -