1. Department of Psychiatry; Chang Gung Memorial Hospital at Linkou; Tao-Yuan Taiwan
2. School of Medicine, College of Medicine; Chang Gung University; Tao-Yuan Taiwan
3. School of Nursing, College of Medicine; Chang Gung University; Tao-Yuan Taiwan
4. Department of Nursing; Chang Gung University of Science and Technology; Tao-Yuan Taiwan
5. Department of Psychiatry; Chang Gung Memorial Hospital at Keelung; Keelung Taiwan
6. Division of Internal Medicine, Department of Internal Medicine; Chang Gung Memorial Hospital at Linkou; Tao-Yuan Taiwan