1. Department of Physical Medicine and Rehabilitation, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation , Taichung 427 , Taiwan
2. School of Medicine, Tzu Chi University , Hualien 970 , Taiwan
3. Department of Medical Research, Tungs’ Taichung MetroHarbor Hospital , Taichung 435 , Taiwan
4. Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University , Taichung 402 , Taiwan
5. Department of Nursing, Jen-Teh Junior College of Medicine, Nursing and Management , Miaoli 356 , Taiwan
6. Institute of Biomedical Science, National Chung Hsing University , Taichung , Taichung 402 , Taiwan
7. Department of Medical Research, China Medical University Hospital , Taichung 404 , Taiwan
8. Department of Medical Research, Taichung Veterans General Hospital , Taichung 407 , Taiwan
9. Department of Pharmacology, College of Medicine, Kaohsiung Medical University , Kaohsiung 807 , Taiwan