[1] Univ Hosp Basel, Cardiol Elect Div, Dept Med, Basel, Switzerland
[2] Univ Basel, Cardiovasc Res Inst Basel, Univ Hosp Basel, Basel, Switzerland
[3] Univ Bern, Bern Univ Hosp, Dept Cardiol, Inselspital, Bern, Switzerland
[4] Univ Bern, Inst Primary Hlth Care BIHAM, Bern, Switzerland
[5] Univ Bern, Bern Univ Hosp, Dept Gen Internal Med, Inselspital, Bern, Switzerland
[6] Triemli Hosp Zurich, Dept Cardiol, Zurich, Switzerland
[7] Kantonsspital St Gallen, Dept Cardiol, St Gallen, Switzerland
[8] Ente Osped Cantonale, Div Cardiol, Osped Reg Lugano, Lugano, Switzerland
[9] Ente Osped Cantonale, Cardioctr Ticino Inst, Lugano, Switzerland
[10] Univ Hosp Basel, Clin Trial Unit Basel, Dept Clin Res, Basel, Switzerland
[11] Univ Basel, Dept Neurol, Univ Hosp Basel, Basel, Switzerland
[12] Univ Basel, Stroke Ctr, Univ Hosp Basel, Basel, Switzerland
[13] McMaster Univ, Hlth Res Inst, Hamilton, ON, Canada