title: Severe pneumonitis occurring during methotrexate therapy. Re- port of two cases.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular; D008297:Male; D008727:Methotrexate / Q000008:administration & dosage / Q000009:adverse effects*; D011014:Pneumonia / Q000139:chemically induced* / Q000000981:diagnostic imaging; D011859:Radiography; D012871:Skin Diseases / Q000150:complications / Q000188:drug therapy
chemical_list: D008727:Methotrexate