1. Medtronic, plcMounds View Minnesota
2. Fondazione Cardiocentro TicinoLugano Switzerland
3. The Christ Hospital‐Ohio Heart & VascularCincinnati Ohio
4. Kindai University School of MedicineOsaka Japan
5. Royal Jubilee HospitalVictoria British Columbia Canada
6. Medtronic Bakken Research CenterMaastricht The Netherlands
7. Division of CardiologyVirginia Commonwealth UniversityRichmond Virginia