1. Cardioangiologisches Centrum BethanienFrankfurt Germany
2. Semmelweis UniversityBudapest Hungary
3. IKEMPrague Czech Republic
4. Haga ZiekenhuisDen Haag The Netherlands
5. Deutsches HerzzentrumMünchen Germany
6. Kerckhoff KlinikBad Nauheim Germany
7. Faculty of Health and Social SciencesCeske Budejovice Hospital, University of South BohemiaBudejovice Czech Republic
8. Katharinen HospitalUnna Germany
9. Onze Lieve Vrouwe GasthuisAmsterdam The Netherlands
10. Peter Osypka Heart CenterMunich Germany
11. Klinikum St GeorgLeipzig Germany
12. Biotronik SE & Co KGBerlin Germany
13. Hôpitaux Universitaires de GenèveGeneva Switzerland