1. Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
2. Department of Psychiatry, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
3. Department of Cell and Developmental Biology, Medical School, University of Michigan, Michigan, USA
4. Department of Psychiatry, General Cheng Hsin Hospital, Taipei, Taiwan
5. Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
6. Institute of Hospital and Health Care Administration, National Yang Ming Chiao Tung University, Taipei, Taiwan
7. Department of Family Medicine, Taipei Veterans General Hospital, Hsinchu, Taiwan