title: Letter: Complications during methotrexate therapy for psoriasis.
mesh_terms: D000328:Adult; D001853:Bone Marrow / Q000187:drug effects*; D006509:Hepatitis B / Q000150:complications*; D006511:Hepatitis B Antigens; D006801:Humans; D008297:Male; D008727:Methotrexate / Q000627:therapeutic use*; D011014:Pneumonia / Q000150:complications*; D011565:Psoriasis / Q000150:complications* / Q000188:drug therapy
chemical_list: D006511:Hepatitis B Antigens; D008727:Methotrexate