title: [A case of ulcus durum localized on the lower lip].
mesh_terms: D000328:Adult; D006801:Humans; D008047:Lip Diseases / Q000175:diagnosis*; D008297:Male; D013587:Syphilis / Q000175:diagnosis*
vernacular_title: Slucaj ulcus durum-a lokalizovanog na donjoj usni.