1. Department of Cardiology; Shanghai Ruijin Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
2. Department of Internal Medicine; CARMA Center; University of Utah; Salt Lake City UT USA
3. Cardiac Rhythm Management Laboratory; Department of Biomedical Engineering; University of Alabama at Birmingham; Birmingham AL USA
4. Division of Cardiovascular Disease; Department of Medicine; University of Alabama at Birmingham; Birmingham AL USA