1 Department of Anesthesiology, VU Amsterdam University Medical Center, Amsterdam 1081 HV, Netherlands; Helicopter Emergency Medical Service Lifeliner 1, VU Amsterdam University Medical Center, Amsterdam 1081 HV, Netherlands. Electronic address: [email protected].
2 Department of Quantitative Health Sciences and Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA.
3 Department of Anesthesiology, VU Amsterdam University Medical Center, Amsterdam 1081 HV, Netherlands.
4 Department of Anesthesiology, VU Amsterdam University Medical Center, Amsterdam 1081 HV, Netherlands; Helicopter Emergency Medical Service Lifeliner 1, VU Amsterdam University Medical Center, Amsterdam 1081 HV, Netherlands.