1. Department of Immunology, Tianjin Institute of Immunology, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Diseases and Microenvironment of Ministry of Education of China, Tianjin Medical University, Tianjin 300070, P.R. China
2. Department of Pathology, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin 300100, P.R. China
3. Department of Blood Transfusion, Qilu Hospital of Shandong University Dezhou Hospital, Dezhou, Shandong 253000, P.R. China
4. Department of Laboratory, Shanxi Eye Hospital, Taiyuan, Shanxi 030002, P.R. China
5. Department of Family Planning, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
6. Department of Clinical Laboratory, The Affiliated Eye Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China