The use of alfentanil as an induction agent.
D000368:Aged; D015760:Alfentanil; D000771:Anesthesia, Intravenous; D000777:Anesthetics; D005260:Female; D005283:Fentanyl / Q000031:analogs & derivatives*; D006801:Humans; D008297:Male; D008875:Middle Aged
D000777:Anesthetics; D015760:Alfentanil; D005283:Fentanyl