Respiratory depression after alfentanil infusion.
D000759:Adjuvants, Anesthesia / Q000009:adverse effects*; D015760:Alfentanil; D005283:Fentanyl / Q000009:adverse effects / Q000031:analogs & derivatives*; D006801:Humans; D012131:Respiratory Insufficiency / Q000139:chemically induced*
D000759:Adjuvants, Anesthesia; D015760:Alfentanil; D005283:Fentanyl