
Clinical effectiveness of Yuangong copper 300, copper T 380A and medicated copper ring 165 intrauterine devices
LI Li, WANG Chen, ZOU Yan, et al
Chinese Journal of Family Planning ›› 2014, Vol. 22 ›› Issue (12) : 821.
Clinical effectiveness of Yuangong copper 300, copper T 380A and medicated copper ring 165 intrauterine devices
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