Yang, Y. S.Y. S.YangYang, Yu-ShihYu-ShihYangLee, Tzu-YaoTzu-YaoLee楊友仕李鎡堯2009-05-222018-07-122009-05-222018-07-121987http://ntur.lib.ntu.edu.tw//handle/246246/159467en-USEtiological Study of 188 Patients with Secondary Amenorrhea