title: Metabolism after surgery in the elderly.
mesh_terms: D000368:Aged; D002118:Calcium / Q000652:urine; D005260:Female; D006801:Humans; D008297:Male; D008660:Metabolism; D008875:Middle Aged; D009584:Nitrogen / Q000378:metabolism / Q000652:urine; D010758:Phosphorus / Q000652:urine; D011188:Potassium / Q000652:urine; D012964:Sodium / Q000652:urine; D013514:Surgical Procedures, Operative
chemical_list: D010758:Phosphorus; D012964:Sodium; D009584:Nitrogen; D011188:Potassium; D002118:Calcium