title: [Ulcers, diverticula and tumors of second portion of duodenum; differential diagnosis].
authors.forename: M
authors.initials: M
authors.lastname: CENTOLA
mesh_terms: D003937:Diagnosis, Differential; D004240:Diverticulum; D004386:Duodenum; D006801:Humans; D009369:Neoplasms; D010437:Peptic Ulcer; D014456:Ulcer