[1] Univ Freiburg, Fac Med, Med Ctr, Dept Anesthesiol & Crit Care, Freiburg, Germany
[2] Ludwig Maximilians Univ Munchen, Univ Hosp, Inst Med Educ, Munich, Germany
[3] Hlth Care Assoc Dist Constance, Inst Infect Control & Infect Prevent, Hegau Jugendwerk Gailingen, Constance, Germany
[4] Hegau Bodensee Hosp Singen, Inst Anesthesiol Intens Care Emergency Med & Pain, Singen, Germany
[5] Univ Augsburg, Univ Hosp Augsburg, Dept Emergency Med, Augsburg, Germany
[6] Dept Emergency Med, Munich, Germany
[7] Paramed & Fire Acad, Munich, Germany
[8] Training Ctr Emergency Med NOTIS eV, Engen, Germany
[9] Inst Infect Control & Infect Prevent, Hausherrenstr 12, D-78315 Radolfzell am Bodensee, Germany