[1] Charite Univ Med Berlin, Dept Emergency & Acute Med, Berlin, Germany
[2] Res Inst Local Hlth Care Funds WIdO, Berlin, Germany
[3] Helios Clin Berlin Buch, Dept Cardiol & Nephrol, Berlin, Germany
[4] German Soc Cardiologists Private Practise BNK, Munich, Germany
[5] Fed Assoc Local Hlth Care Funds AOK, Berlin, Germany
[6] Tech Univ Berlin, Fac Econ & Management, Berlin, Germany
[7] St Antonius Hosp, Clin Acute & Emergency Med, Eschweiler, Germany
[8] AOK Nordost, Res Inst Local Hlth Care Funds WIdO, Berlin, Germany