1. Department of Pathology, Weifang People’s Hospital, the First Affiliated Hospital of Weifang Medical College, Weifang, Shandong Province, China
2. Department of Gynaecology and Obstetrics, the Affiliated Hospital of Maternal and Child Health, Weifang Medical College, Weifang Maternal and Child Health Care Hospital, Weifang, Shandong Province, China
3. Department of Radiation Oncology, Weifang People’s Hospital, the First Affiliated Hospital of Weifang Medical College, Weifang, Shandong Province, China