title: [Tumors of the head of the pancreas and periampullary zone (on the problem of semiotics)].
mesh_terms: D014670:Ampulla of Vater; D002779:Cholestasis / Q000145:classification / Q000209:etiology; D004386:Duodenum / Q000601:surgery; D006801:Humans; D010180:Pancreatectomy; D010190:Pancreatic Neoplasms / Q000145:classification / Q000150:complications / Q000175:diagnosis* / Q000601:surgery
vernacular_title: Opukholi golovki podzheludochnoĭ zony (k probleme semiotiki.