[1] Amsterdam Univ Med Ctr, Amsterdam, Netherlands
[2] Cardioctr Ticino, Lugano, Switzerland
[3] Glan Clwyd Gen Hosp, Bodelwyddan, Denbigh, Wales
[4] Royal Bournemouth Hosp, Bournemouth, Dorset, England
[5] Kerckhoff Heart & Thorax Ctr, Bad Nauheim, Germany
[6] Hosp Bichat Claude Bernard, Paris, France
[7] St Michaels Hosp, Toronto, ON, Canada
[8] Inselspital Bern, Prevent Cardiol & Sports Med, Bern, Switzerland
[9] Virga Jesse Hosp, Hasselt, Belgium
[10] Erasmus MC, Rotterdam, Netherlands
[11] Imperial Coll London, London, England