TY  - RPRT
TI  - Ventilatory function and transfer factor in ankylosing spondylitis.
AU  - D L Citrin
AU  - G Boyd
AU  - G W Bradley
PY  - 1973
DO  - 10.1177/003693307301800404
UR  - https://pubmed.ncbi.nlm.nih.gov/4719073/
ID  - 4719073
ER  -