Address for correspondence: Dr. Anna Sarcon, Division of Electrophysiology, Department of Cardiology, University of California-San Francisco, 400 Parnassus, 5th Floor, San Francisco, California 94143, USA.; Section on Electrophysiology, Division of Cardiovascular Medicine, University of California-San Francisco, San Francisco, California, USA
Bing Liem, DO
Section on Electrophysiology, Division of Cardiovascular Medicine, University of California-San Francisco, San Francisco, California, USA