1Engoren M,Luther G,Fnn-Buderer N.A comparison of fentany sufentanil and remifentanil for fast-track.cardiac anesthesia.Anesth Aanlg,2001,93(4):859~895.
2Knill RL.Does sufentanil produce less ventilatory depres44sion than fentany.Anesth Analg,1990,70(1):8~15.