1. University of Utah Cardiovascular division, Salt Lake City, UT
2. Tri‐City Cardiology Consultants, Mesa, AZ
3. Saint Luke's Mid America Heart Institute and University of Missouri‐Kansas City School of Medicine, Kansas City, MO
4. Ahmanson‐UCLA Cardiomyopathy Center, Los Angeles, CA
5. Duke Clinical Research Institute, Durham, NC
6. Lilly USA, LLC, Indianapolis, IN
7. John Ochsner Heart and Vascular Institute Ochsner Medical Center, New Orleans, LA