[1] Johns Hopkins Univ, Johns Hopkins Ciccarone Ctr Prevent Cardiovasc Dis, Div Cardiol, Baltimore, MD USA
[2] Univ Calif Los Angeles, Div Cardiol, Los Angeles, CA USA
[3] Cedars Sinai Smidt Heart Inst, Barbra Streisand Womens Heart Ctr, Dept Cardiol, Los Angeles, CA USA
[4] Smidt Heart Inst, Cedars Sinai Med Ctr, Barbra Streisand Womens Heart Ctr, 127 S San Vicente Blvd,Suite A3600, Los Angeles, CA 90048 USA