TY  - RPRT
TI  - Methotrexate for ankylosing spondylitis.
AU  - J Chen
AU  - C Liu
PY  - 2004
DO  - 10.1002/14651858.cd004524.pub2
UR  - https://pubmed.ncbi.nlm.nih.gov/15266537/
ID  - 15266537
ER  -