1. Department of Pathology, Shihezi University School of Medicine, Xinjiang 832002, China
2. Department of Obstetrics and Gynecology, The First Affiliated Hospital School of Medicine, Shihezi University, Xinjiang 832002, China
3. Department of Preventive Medicine, School of Medicine, Shihezi University, Xinjiang 832002, China
4. Department of Pathology and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China