title: Polyderma gangrenosum.
authors.forename: Richard
authors.initials: R
authors.lastname: Groves
mesh_terms: D016021:Epidemiologic Studies; D006801:Humans; D017511:Pyoderma Gangrenosum / Q000188:drug therapy / Q000453:epidemiology* / Q000209:etiology; D013030:Spain / Q000453:epidemiology