1. Columbia University Irving Medical Center, NewYork-Presbyterian Hospital, New York City, NY (T.M.N., T.J.C., R.T.H., M.B.L., I.G.).
2. Bay Area Structural Heart (BASH) @ Sutter Health, Burlingame, CA (D.D., C.S.).
3. University of Washington Medical Center, Seattle (J.M.M., M.R.).
4. Cedars-Sinai Medical Center, Los Angeles, CA (T.C., R.M.).
5. Cleveland Clinic Foundation, Cleveland, OH (A.K., S.K.).
6. Ascension Via Christi, Wichita, KS (B.M.C.).
7. MedStar Union Memorial Hospital, Baltimore, MD (J.W.).
8. Ascension Saint Thomas, Nashville, TN (E.R.).
9. Brigham and Women’s Hospital, Boston, MA (T.K.).