title: Alfentanil anesthesia in gall bladder surgery.
mesh_terms: D015760:Alfentanil; D000771:Anesthesia, Intravenous; D005283:Fentanyl / Q000008:administration & dosage / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000097:blood; D006801:Humans; D012131:Respiratory Insufficiency / Q000139:chemically induced
chemical_list: D015760:Alfentanil; D005283:Fentanyl