title: [The effect of moderate-dose fentanyl-N2O anesthesia on urinary catecholamine excretion during upper-abdominal surgery].
mesh_terms: D000005:Abdomen / Q000601:surgery*; D000328:Adult; D000758:Anesthesia; D002395:Catecholamines / Q000652:urine*; D005260:Female; D005283:Fentanyl / Q000008:administration & dosage*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009609:Nitrous Oxide / Q000008:administration & dosage*
chemical_list: D002395:Catecholamines; D009609:Nitrous Oxide; D005283:Fentanyl