passages.id: 1521
passages.type: sentence
passages.text: We conclude that granisetron is a better anti-emetic than perphenazine for the long-term prevention of post-operative vomiting in children undergoing general anaesthesia for tonsillectomy .
entities.id: 1522
entities.type: intervention
entities.text: granisetron
entities.id: 1523
entities.type: intervention
entities.text: perphenazine
entities.id: 1524
entities.type: outcome
entities.text: long-term prevention of post-operative vomiting
entities.id: 1525
entities.type: participant
entities.text: children undergoing general anaesthesia for tonsillectomy .