title: Critique of a method of studying drugs given before anaesthesia. Summary.
mesh_terms: D000367:Age Factors; D001835:Body Weight; D002986:Clinical Trials as Topic; D003475:Curettage; D005260:Female; D006801:Humans; D008614:Meperidine / Q000008:administration & dosage; D008722:Methods; D011229:Preanesthetic Medication
chemical_list: D008614:Meperidine