1Abonern J,Olkkola KT,Hynynen M,et al.Comparison of alfentanil,fentanyl and sufentanil for total intravenous anaesthesia with propofol in patients undergoing coronary artery bypass surgery.Brj Anaesth,2000,85(12):533-540.
2Thomson IR,Harding G,Hudson RJ.A comparison of fentanyl and sufentanil in patients undergoing coronary artery bypass graft surgery.J Cardiothorac Vasc Anesth,2001,14(5):652-656.