1 Division of Cardiovascular Medicine, Wexner Medical Center, The Ohio State University, Columbus, OH, USA.
2 Division of Cardiology, University of North Carolina, Chapel Hill, NC, USA.
3 Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA. Electronic address: jagat.narula@mountsinai.org.