1 Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan.
2 Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China.
3 State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Medical College of Soochow University, Suzhou, China.
4 Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, Memphis, TN, United States.
5 Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, United States.