1. Kerckhoff-Klinik GmbH, Benekestrasse 2-8, Bad Nauheim, Hesse, Germany
2. CHU Grenoble, BP 217, Grenoble, France
3. Isala Klinieken, Dokter van Heesweg 2, Zwolle, AB Overijssel, Netherlands
4. Hospital Infanta Cristina, Avenida de Elvas, s/n, Badajoz, Spain
5. Amsterdam Academic Medical Center, Meibergdreef 9, AZ Amsterdam, Netherlands
6. Centro Cardiologico Monzino, Via C. Parea 4, Milan, Italy
7. Hopital La Timone, 264 rue Saint-Pierre, Marseille, France
8. Royal Brompton and Harefield NHS Foundation Trust, Imperial College, Sydney Street, London, UK
9. Na Homolce Hospital, Roentgenova 2, Prague, Czech Republic