[1] Cardiovasc Res Inst Basel, Basel, Switzerland
[2] Univ Hosp Basel, Basel, Switzerland
[3] Hosp Clin Barcelona, Barcelona, Spain
[4] Kantonsspital Luzern, Dept Emergency Med, Luzern, Switzerland
[5] Royal Brisbane & Womens Hosp, Herston, Australia
[6] Christchurch Hosp, Christchurch, New Zealand
[7] Hosp Clin San Carlos, Madrid, Spain
[8] Univ Hosp Zurich, Zurich, Switzerland