Psychologic preparation of children for tonsillectomy.
D001241:Aspirin / Q000009:adverse effects*; D002648:Child; D002673:Child, Hospitalized; D005239:Fear; D006801:Humans; D008614:Meperidine / Q000627:therapeutic use; D010287:Parent-Child Relations; D011182:Postoperative Care; D011300:Preoperative Care; D011585:Psychology, Applied; D014068:Tonsillectomy
D008614:Meperidine; D001241:Aspirin