title: [Investigation on the etiology of postoperative reflux gastritis].
mesh_terms: D000328:Adult; D005260:Female; D005743:Gastrectomy / Q000009:adverse effects*; D005750:Gastric Juice / Q000032:analysis; D005756:Gastritis / Q000209:etiology* / Q000473:pathology; D005764:Gastroesophageal Reflux / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D012964:Sodium / Q000032:analysis
chemical_list: D012964:Sodium