1. Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Key Laboratory of Reproductive and Genetic Medicine (China Medical University), National Health Commission, Shenyang, Liaoning 110004, China
2. Next Fertility GynePro-NextClinics International, Bologna, Italy
3. RVT Australia, Cairns, Australia
4. Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100084, China.