A double blind comparison of parenteral analgin with pethidine.
D000005:Abdomen / Q000601:surgery; D000328:Adult; D000632:Aminopyrine / Q000031:analogs & derivatives*; D002986:Clinical Trials as Topic; D004177:Dipyrone / Q000008:administration & dosage*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008614:Meperidine / Q000008:administration & dosage*; D010149:Postoperative Pain / Q000188:drug therapy*
D000632:Aminopyrine; D004177:Dipyrone; D008614:Meperidine