title: Methotrexate may affect certain T lymphocyte subsets in rheumatoid arthritis resulting in susceptibility to Pneumocystis carinii infection.
authors: P M
authors: PM
authors: Houtman
authors: A A
authors: AA
authors: Stenger
authors: G A
authors: GA
authors: Bruyn
authors: J
authors: J
authors: Mulder
mesh_terms: D000328:Adult; D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D004198:Disease Susceptibility; D006801:Humans; D008297:Male; D008727:Methotrexate / Q000009:adverse effects* / Q000627:therapeutic use; D016720:Pneumocystis Infections / Q000139:chemically induced*; D016176:T-Lymphocyte Subsets / Q000187:drug effects*
chemical_list: D008727:Methotrexate