Naloxone-inducted and spontaneous reversal of depressed ventilatory response to hypoxia during and after continuous infusion of remifetanyl or alfentanyl - Amin,H.M.; Sopchak,A.M.; Esposito,B.F.; Henson,L.G.; Batenhorst,R.L.; Fox,A.W.; Camporesi,E.M. (J Pharmacol Experimen Ther, 1995)