CH de la Cote Basque, Bayonne, France
Clinique Saint Augustin, Bordeaux, France
Clinique du Milénaire, Montpellier, France
Semmelweis University, Budapest, Hungary
A.O. Destra Secchia, Pieve di Coriano, Mantova, Italy
A.O.U. Ospedali Riuniti di Ancona, Ancona, Italy
Ospedale Dell'Angelo, Mestre, Venezia, Italy
SV. Anny Clinic Brno, Brno, Czech Republic
Charité Uniklinikum Benjamin Franklin, Berlin, Germany
St. Gertrauden Krankenhaus, Berlin, Germany
Allgemeines Krankenhaus Linz, Linz, Austria
Uniklinik Leipzig, Leipzig, Germany
Medical School Hannover, Hannover, Germany
Centro Privado de Cardiologia, Tucuman, Argentina
Universitätsklinikum Rostock, Rostock, Germany
Arrhythmia Department Skane University Hospital, Lund, Sweden
Charité University Hospital Benjamin Franklin, Berlin, Germany