1. University of Pittsburgh School of Medicine, PA (R.T.).
2. Northside Heart and Vascular Institute, Northside Hospital, Atlanta, GA (P.E.).
3. Emory Women’s Heart Center, Emory University School of Medicine, Atlanta, GA (A.N.).
4. Northwestern University Feinberg School of Medicine, Chicago, IL (G.L.).
5. Division of Cardiology, University of Texas Southwestern Medical Center, Dallas (A.K.).