Induction of anaesthesia with Alfentanil.
D015760:Alfentanil; D000701:Analgesics, Opioid; D000768:Anesthesia, General; D005283:Fentanyl / Q000031:analogs & derivatives*; D006801:Humans
D000701:Analgesics, Opioid; D015760:Alfentanil; D005283:Fentanyl