1. Saint Luke’s Mid America Heart Institute, Kansas City, MO (T.H., J.A.G., D.J.C., K.N., K.L.G., J.A.S., A.C.S.).
2. University of Missouri Kansas City (T.H., J.A.G., D.J.C., J.A.S., A.C.S.).
3. Monash Heart, Melbourne, Australia (J.S.).
4. Research Medical Center, Kansas City, MO (S.P.M.).
5. University of Washington, Seattle (W.L.).
6. Columbia University, New York Presbyterian Hospital (D.K., J.M.).
7. York Hospital, PA (W.J.N.).
8. Banner Good Samaritan Medical Center, Phoenix, AZ (A.P.).
9. Banner Heart, Mesa, AZ (A.P.).
10. Torrance Medical Center, CA (R.M.W.).
11. Boone County Hospital, Columbia, MO (A.S.).
12. Peacehealth Sacred Heart Medical Center, Springfield, OR (S.C.).
13. Alexian Brothers Medical Center, Chicago, IL (P.D.).
14. FHS, Albuquerque, NM (R.F.).