[1] Johannes Gutenberg University, Department of Anaesthesiology
[2] Norwegian Air Ambulance, Dept. of Res./Educ. in Acute Med.
[3] Ullevål University Hospital, Inst. for Exp. Medical Research
[4] Hopital Lariboisiere, Dept. of Anaesthiol. and Reanimation
[5] Ottawa Civic Hospital, Clinical Epidemiology Unit, Ottawa
[6] Odense University Hospital, Department of Cardiology B
[7] Klinikum Mannheim, Inst. for Anaesthiol./Intensive Med.
[8] Leopold-Franzens-University, Dept. of Anaesthiol./Intensive Med.
[9] St. Paul-Ramsey Emergency Med. S., St. Paul
[10] Ulm University Hospital, Univ. Clinic for Anaesthesiology