title: Positive nitrogen balance immediately after abdominal operations.
mesh_terms: D000005:Abdomen / Q000601:surgery*; D000328:Adult; D000368:Aged; D000596:Amino Acids / Q000008:administration & dosage*; D005260:Female; D005767:Gastrointestinal Diseases / Q000601:surgery; D005947:Glucose / Q000008:administration & dosage*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009584:Nitrogen / Q000378:metabolism*; D010288:Parenteral Nutrition; D011182:Postoperative Care; D011506:Proteins / Q000378:metabolism*; D014882:Water-Electrolyte Balance
chemical_list: D000596:Amino Acids; D011506:Proteins; D005947:Glucose; D009584:Nitrogen