[1
]
Department of Anaesthesiology & Intensive Care Medicine - Section Emergency Medicine/HEMS
"Christoph 22", Armed Forces Medical Centre Ulm, Germany. Electronic address: matthias.helm@extern.uni-ulm.de.
[2
]
Department of Anaesthesiology & Intensive Care Medicine - Section Emergency Medicine/HEMS
"Christoph 22", Armed Forces Medical Centre Ulm, Germany.
[3
]
Medical Quality Management - ADAC Luftrettung (Subsidiary of the German Automobile
Association), Munich, Germany.
[4
]
Department of Medicine - ADAC Luftrettung (Subsidiary of the German Automobile Association),
Munich, Germany.