title: [Estimation of nitrogen and electrolyte loss in the early period after abdominal operations].
mesh_terms: D000005:Abdomen / Q000601:surgery*; D000293:Adolescent; D000328:Adult; D000368:Aged; D001806:Blood Urea Nitrogen; D002648:Child; D002675:Child, Preschool; D004573:Electrolytes / Q000032:analysis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009584:Nitrogen / Q000032:analysis; D011184:Postoperative Period
chemical_list: D004573:Electrolytes; D009584:Nitrogen