1. State Key Laboratory of Reproductive Medicine, Department of Obstetrics and Gynecology; The First Affiliated Hospital of Nanjing Medical University / Jiangsu Province Hospital / Jiangsu Women and Children Health Hospital; Nanjing China
2. Departments of Laboratory Medicine and Pathology; Boston Children's Hospital and Harvard Medical School; Boston MA USA
3. Reproductive Medicine Center; the 105th hospital of PLA; Hefei China
4. Children's Hospital of Fudan University; Department of Pathology and Institute of Biomedical Science, Shanghai Medical College of Fudan University; Shanghai China