1. Department of Ophthalmology, Guiyang Maternal and Child Health Care Hospital, Guiyang, China
2. Central Laboratory, Guizhou Aerospace Hospital, Zunyi, China
3. Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
4. Central Laboratory, Institute of Emergency Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
5. Department of Clinical Laboratory, The Second Affiliated Hospital of Guizhou Medical University, Kaili, China