Kai-Lin Li, Pin-Hsuan Chiang, Hsiao-I Kuo, Jui-Ying Hung,. “THE CHOICE PREFERENCES OF SPORTS AND FITNESS SERVICE IN TAIWANESE OLDER ADULTS”. Obstetrics and Gynaecology Forum, vol. 34, no. 2s, May 2024, pp. 19-24, http://obstetricsandgynaecologyforum.com/index.php/ogf/article/view/70.