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