1 National and Kapodistrian University of Athens, School of Medicine, Attikon University Hospital, Athens 124 61, Greece. Electronic address: [email protected].
2 Medical University of South Carolina, Charleston, SC, USA.
3 Department of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium; Hasselt University, Hasselt, Belgium.
4 National Cerebral and Cardiovascular Center, Osaka, Japan.
5 King Saud University, Faculty of Medicine, Riyadh, Saudi Arabia.
6 University of Ottawa Heart Institute, Ottawa, ON, Canada.
7 Medtronic Bakken Research Center, Maastricht, Netherlands.