title: Intraoperative fentanyl reduces early vomiting after paediatric tonsillectomy compared with morphine
authors: Directorate of Anaesthesia, Plymouth NHS Trust, Derriford Hospital, Plymouth, UK.
authors: V
authors: Esuvaranathan
authors: K
authors: Mukherjee
authors: C
authors: Streets
authors: A
authors: Johnson
authors: AS
authors: Carr