Methotrexate lacks efficacy in the treatment of severe ankylosing spondylitis compared with rheumatoid and psoriatic arthritis
- PMID: 19078272
- DOI: 10.1097/00124743-199806000-00007
Methotrexate lacks efficacy in the treatment of severe ankylosing spondylitis compared with rheumatoid and psoriatic arthritis
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