title: A double-blind study of diazepam, droperidol, and meperidine as premedication in children.
mesh_terms: D001544:Benperidol / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D003975:Diazepam / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D008614:Meperidine / Q000009:adverse effects / Q000627:therapeutic use*; D010919:Placebos; D011229:Preanesthetic Medication; D014149:Tranquilizing Agents / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D010919:Placebos; D014149:Tranquilizing Agents; D001544:Benperidol; D008614:Meperidine; D003975:Diazepam