title: Chronic ulcer in the hard palate. Methotrexate-induced oral ulceration.
authors.forename: Nikolaos G
authors.initials: NG
authors.lastname: Nikitakis
authors.forename: John K
authors.initials: JK
authors.lastname: Brooks
mesh_terms: D018501:Antirheumatic Agents / Q000009:adverse effects*; D001706:Biopsy; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008727:Methotrexate / Q000009:adverse effects*; D008875:Middle Aged; D019226:Oral Ulcer / Q000139:chemically induced*; D010159:Palate / Q000473:pathology
chemical_list: D018501:Antirheumatic Agents; D008727:Methotrexate