title: A double-blind comparison of pentazocine, pethidine and morphine in paediatric premedication.
mesh_terms: D001835:Body Weight; D002648:Child; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D007223:Infant; D007273:Injections, Intramuscular; D008297:Male; D008614:Meperidine / Q000008:administration & dosage / Q000627:therapeutic use*; D009020:Morphine / Q000008:administration & dosage / Q000627:therapeutic use*; D010423:Pentazocine / Q000008:administration & dosage / Q000627:therapeutic use*; D011229:Preanesthetic Medication; D013997:Time Factors
chemical_list: D009020:Morphine; D008614:Meperidine; D010423:Pentazocine