title: Randomised trial of fentanyl anaesthesia in preterm babies undergoing surgery: effects on the stress response.
authors.affiliation: Department of Paediatrics, John Radcliffe Hospital, Oxford.
authors.forename: K J
authors.initials: KJ
authors.lastname: Anand
authors.forename: W G
authors.initials: WG
authors.lastname: Sippell
authors.forename: A
authors.initials: A
authors.lastname: Aynsley-Green