1 JC School of Public Health and Primary Care, Faculty of Medicine, The Prince of Whales Hospital, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
2 Department of Orthopedics, Cishan Hospital, Ministry of Health and Welfare, Kaohsiung, Taiwan.
3 Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung, Taiwan.
4 Department of Senior Services Industry Management, Minghsin University of Science and Technology, Hsinchu, Taiwan.
5 Department of Recreation and Sport Management, Shu-Te University, Kaohsiung, Taiwan.
6 Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.
7 Department of Allergy, Immunology & Rheumatology, Chung Shan Medical University Hospital, Taichung, Taiwan.
8 Department of Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan.