1. Department of Neurology, Chang Gung Memorial Hospital, Keelung Branch, Keelung, Taiwan.
2. College of Medicine, Chang Gung University, Taoyuan, Taiwan.
3. Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung Branch, Keelung, Taiwan.
4. Department of Psychiatry, Chang Gung Memorial Hospital, Keelung Branch, Keelung, Taiwan.
5. Department of Nursing, Chang Gung University of Science and Technology, Taoyuan, Taiwan.
6. Department of Neurosurgery, Chang Gung Memorial Hospital, Keelung Branch, Keelung, Taiwan.