title: Radioimmunoassayable methotrexate concentrations in plasma and skin exudate of patients with psoriasis.
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D008727:Methotrexate / Q000097:blood / Q000378:metabolism* / Q000627:therapeutic use; D008875:Middle Aged; D011565:Psoriasis / Q000097:blood / Q000188:drug therapy / Q000378:metabolism*; D011863:Radioimmunoassay; D012867:Skin / Q000378:metabolism*
chemical_list: D008727:Methotrexate