1. Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C;
2. Department of Psychiatry, Hsinchu Armed Force Hospital, Hsinchu, Taiwan, R.O.C;
3. Department of Psychiatry, Beitou Branch, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C;
4. Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, R.O.C;
5. Department of Psychiatry, Buddhist Tzu Chi General Hospital, Taipei, Taiwan, R.O.C;
6. Department of Psychiatry, College of Medicine, National Cheng-Kung University, Tainan, Taiwan, R.O.C