Alfentanil requirement in Crohn's disease.
Alfentanil
Alfentanil Hydrochloride
Alfentanil/morphine
The effect of epidural administration of alfentanil on intra-operative intravenous alfentanil requirements during nitrous oxide-oxygen-alfentanil anaesthesia for lower abdominal surgery
ALFENTANIL PHARMACOKINETICS
ALFENTANIL
The analgesic effect of a low dose of alfentanil