1 From the Barbra Streisand Women's Heart Center, Cedars-Sinai Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California (C.N.B.M); The Queen Elizabeth Hospital Discipline of Medicine, University of Adelaide, Central Adelaide Local Health Network, Adelaide, South Australia, Australia (J.B.); and Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (H.S.).