Rohit Walia1, Li-Wei Lo2, Yat-Yin Lam3, Wen-Chung Yu4, Shih-Ann Chen4. 1. Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taiwan. 2. Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taiwan; Institute of Clinical Medicine, and Cardiovascular Research Institute, National Yang-Ming University, Taipei, Taiwan. Electronic address: gyrus@ms65.hinet.net. 3. Charité University Medicine, Berlin, Germany; Prince of Wales Hospital, Hong Kong. Electronic address: yylam@me.com. 4. Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taiwan; Institute of Clinical Medicine, and Cardiovascular Research Institute, National Yang-Ming University, Taipei, Taiwan.