1 State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina.
2 Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina. Electronic address: goldmr@musc.edu.