1. Maimonides Medical Center, Brooklyn, NY (A.S.).
2. Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (A.R.G.).
3. Tufts Medical Center, Boston, MA (N.K.K.).
4. Henry Ford Health System, Detroit, MI (W.W.O.).
5. Vanderbilt University Medical Center, Nashville, TN (J.L.).
6. Zena and Michael Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York (S.P.P.).
7. Columbia University Irving Medical Center, Weill Cornell Medicine, New York (N.U.).
8. Cardiovascular Research Foundation, New York (D.B.).
9. University of California Irvine and VA Long Beach Healthcare System (M.K.).