1. Department of Gynecology,The First Clinical College,China Medical University,Shenyang,110001,China
2. Tumor Research Institute,China Medical University,Shenyang,110001,China
3. Department of Anatomy,Faculty of Medicine,Kagoshima University,8-35-1,Sakuragaoka,Kagoshima 890-8520
4. Department of Pathology,Faculty of Medicine,Kagoshima University,8-35-1,Sakuragaoka,Kagoshima 890-8520