patients were randomly assigned to receive sufentanil , 20 microg/kg , fentanyl , 100 microg/kg , isoflurane , 1.6 % , or halothane , 0.9 % , along with pancuronium , 0.08 mg/kg , for induction and maintenance of anesthesia .
C0143993
sufentanil
C0015846
fentanyl