1. Department of Psychiatry, Taipei Veterans General Hospital, Yuanshan Branch, Yilan County, Taiwan
2. Department of Psychiatry, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Road, Beitou District, Taipei City 11217, Taiwan
3. Division of Infectious Disease, Department of Medicine, Taipei Veterans General Hospital, Taipei City, Taiwan
4. Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei City, Taiwan
5. Department of Family Medicine, Taipei Veterans General Hospital, Taipei City, Taiwan