title: Emergency intraosseous access in a helicopter emergency medical service: a retrospective study.
authors.affiliation: Department of Anaesthesia and Intensive Care, Haukeland University Hospital, Bergen, Norway. gasu@helse-bergen.no
authors.forename: Geir A
authors.initials: GA
authors.lastname: Sunde
authors.forename: Bård E
authors.initials: BE
authors.lastname: Heradstveit
authors.forename: Bjarne H
authors.initials: BH
authors.lastname: Vikenes
authors.forename: Jon K
authors.initials: JK
authors.lastname: Heltne