title: Luteal aetiology of gastroduodenal ulcer.
mesh_terms: D006801:Humans; D010437:Peptic Ulcer / Q000209:etiology*; D013587:Syphilis / Q000150:complications*
keywords: PEPTIC ULCER/etiology and pathogenesis; SYPHILIS/complications and sequelae
vernacular_title: Etiologäa luética de la úlcera gastroduodenal.