1. Department of Radiation Oncology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
2. Department of Gynecology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
3. The Social Public Relations Sector, Fujian Province Blood Center, Fuzhou, Fujian 350001, P.R. China