1. Reproductive Medicine Center; The Affiliated Hospital; Guilin Medical College; Guilin China
2. Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation; Fertility Center; Shenzhen Zhongshan Urology Hospital; Shenzhen China
3. Reproductive Medicine Center; The Second Affiliated Hospital; Soochow University; Suzhou China
4. Reproductive Medicine Center; The Third Affiliated Hospital; Sun Yat-sen University; Guangzhou China