1. Institute of Medicine Chung Shan Medical University; Taichung Taiwan
2. Department of Senior Citizen Services; National Tainan Junior College of Nursing; Tainan Taiwan
3. Changhua Christian Hospital; Cancer Research Center; Changhua Taiwan
4. Graduate Institute of Biomedical Sciences, China Medical University; Taichung Taiwan
5. Institute of Biochemistry, Microbiology and Immunology; Chung Shan Medical University; Taichung Taiwan
6. Department of Medical Research; Chung Shan Medical University Hospital; Taichung Taiwan
7. Department of Orthopedics; Chung Shan Medical University Hospital; Taichung Taiwan
8. School of Medicine; Chung Shan Medical University; Taichung Taiwan