1. Department of Psychiatry, Kaohsiung Medical University, Kaohsiung, Taiwan
2. Department of Psychiatry, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung, Taiwan
3. Department of Psychiatry, Kaohsiung Medical University, 100 Shih-Chuan 1st Rd, Kaohsiung, Taiwan-807
4. Department of Nursing, Kaohsiung Medical University, Kaohsiung, Taiwan