title: [Special features of obtaining gastric juice and duodenal contents in elderly and senile patients].
mesh_terms: D000368:Aged; D003072:Cognition Disorders; D004386:Duodenum; D005750:Gastric Juice / Q000032:analysis*; D006801:Humans; D007419:Intestinal Secretions / Q000032:analysis*; D013048:Specimen Handling
vernacular_title: Ocovennosti vziatiia zhenudochnogo soka i duodenal'nogo soderzhimogo u liudeĭ pozhilogo vozrasta.