1. Department of Reproductive Physiology; Zhejiang Academy of Medical Sciences; Hangzhou Zhejiang China
2. Department of Andrology; Zhejiang Family Planning Research Institute; Hangzhou Zhejiang China
3. Centre for Reproductive Medicine; Zhejiang Academy of Medical Sciences; Hangzhou Zhejiang China
4. Maternal and Child Health and Family Planning Service Centre of Shangyu District; Shaoxing Zhejiang China
5. Maternal and Child Health and Family Planning Service Centre of Keqiao District; Shaoxing Zhejiang China