1. Division of Cardiology, Weill Cornell MedicineNewYork‐Presbyterian HospitalNew York New York
2. Division of CardiologyUniversity of Alabama at BirminghamBirmingham Alabama
3. Northwest Ohio Cardiology ConsultantsToledo Ohio
4. Division of CardiologyWestchester Medical CenterValhalla New York
5. Division of Cardiovascular MedicineThe Ohio State University Medical CenterColumbus Ohio
6. Division of CardiologyVanderbilt UniversityNashville Tennessee
7. Department of Cardiology and ElectrophysiologyAlbert Einstein Medical Center Philadelphia Pennsylvania
8. Division of CardiologyMassachusetts General HospitalBoston Massachusetts