1. Department of Medicine Division of Cardiology Perelman School of Medicine at the University of Pennsylvania Philadelphia PA
2. Department of Biostatistics, Epidemiology & Informatics Perelman School of Medicine at the University of Pennsylvania Philadelphia PA
3. Division of Cardiology University of Ottawa Heart Institute Ottawa Ontario Canada
4. Abramson Cancer Center Perelman School of Medicine at the University of Pennsylvania Philadelphia PA
5. Department of Medicine Division of Hematology and Oncology University of Pennsylvania Philadelphia PA
6. Division of Oncology The Children's Hospital of Philadelphia PA
7. Department of Population Sciences City of Hope Duarte CA
8. Division of Cardiovascular Medicine Massachusetts General Hospital Boston MA
9. Division of Cardiovascular Medicine Cleveland Clinic Cleveland OH