title: Problems in analyzing helicopter emergency medical service accidents.
authors.affiliation: Department for Anaesthesiology and Intensive Care Medicine University Hospital Cologne Cologne, Germany Department for Anaesthesiology University Hospital of Heidelberg Heidelberg, Germany Department for Anaesthesiology and Intensive Care Medicine University Hospital Cologne Cologne, Germany.
authors.forename: Jochen
authors.initials: J
authors.lastname: Hinkelbein
authors.forename: Christopher
authors.initials: C
authors.lastname: Neuhaus
authors.forename: Stefan
authors.initials: S
authors.lastname: Braunecker