1. Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
2. Department of Gynecology and Obstetrics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
3. Department of General surgery, The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, Jiangsu, China
4. Suzhou Red Cross Blood Station, Suzhou, Jiangsu, China