title: A case of chronic undermining ulceration treated with penicillin.
authors.forename: A
authors.initials: A
authors.lastname: LEACOCK
mesh_terms: D006801:Humans; D010406:Penicillins; D012871:Skin Diseases; D013276:Stomach Ulcer; D014456:Ulcer / Q000628:therapy*
chemical_list: D010406:Penicillins