1. Division of Cardiology; Department of Medicine; Taipei Veterans General Hospital; Taipei Taiwan
2. Faculty of Medicine and Institute of Clinical Medicine; National Yang-Ming University; School of Medicine; Taipei Taiwan
3. Division of Cardiology, Taipei Municipal Gan-Dau Hospital; Taipei Taiwan
4. Research Center for Adaptive Data Analysis; Analysis and Center for Dynamical Biomarkers and Translational Medicine; National Central University; Jhongli Taiwan R.O.C.
5. Medical Biodynamics Program; Division of Sleep Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston Massachusetts USA
6. Department of Psychiatry and Behavioral Sciences; Stanford University School of Medicine; Palo Alto California USA
7. Cardiovascular Center; Taichung Veterans General Hospital; Taichung Taiwan