title: [Gastroduodenal catheterization in the polyclinic].
mesh_terms: D001659:Biliary Tract / Q000503:physiopathology; D004386:Duodenum / Q000503:physiopathology*; D005750:Gastric Juice / Q000032:analysis; D006801:Humans; D007419:Intestinal Secretions / Q000032:analysis; D007441:Intubation, Gastrointestinal / Q000451:nursing*; D013270:Stomach / Q000503:physiopathology*
vernacular_title: Gastroduodenal'noe zondirovanie v usloviiakh polikliniki.