title: Clinical comparison of fentanyl with meperidine.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001794:Blood Pressure / Q000187:drug effects; D002986:Clinical Trials as Topic; D005260:Female; D005283:Fentanyl / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D007442:Intubation, Intratracheal; D008297:Male; D008614:Meperidine / Q000009:adverse effects / Q000627:therapeutic use*; D008875:Middle Aged; D011674:Pulse / Q000187:drug effects
chemical_list: D008614:Meperidine; D005283:Fentanyl