1. Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital , Kaohsiung , Taiwan
2. Kaohsiung Municipal Kai-Syuan Psychiatric Hospital , Kaohsiung , Taiwan
3. Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University , Kaohsiung , Taiwan
4. Department of Post-Baccalaureate Medicine, College of Medicine, National Sun Yat-sen University , Kaohsiung , Taiwan