1. State Key Laboratory of Cardiovascular DiseaseArrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing China
2. Department of CardiologyPeking University Third Hospital, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory PeptidesBeijing China
3. Department of CardiologyBeijing Anzhen Hospital, an affiliate of Capital Medical UniversityBeijing China
4. Electrophysiology Section, Cardiovascular Division, Hospital of the University of PennsylvaniaPhiladelphia Pennsylvania