Address for correspondence: Dr Michelle M. Kittleson, Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Cedars-Sinai Heart Institute, 8670 Wilshire Blvd 2nd Floor, Los Angeles, California 90211, USA.; Department of Cardiologist, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA