title: Low-dose methotrexate-induced ulcerated psoriatic plaques: A rare case.
authors.affiliation: Department of Dermatology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan.
authors.forename: Ming-Chun
authors.initials: MC
authors.lastname: Hsu
authors.affiliation: Department of Dermatology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan; Department of Dermatology and Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.
authors.forename: Chih-Chiang
authors.initials: CC
authors.lastname: Chen
keywords: cutaneous ulceration; methotrexate; psoriasis