1. Department of Radiology, Ajou University School of Medicine , Suwon , South Korea
2. Department of Obstetrics and Gynecology, Ajou University School of Medicine , Suwon , South Korea
3. Department of Surgery, Ajou University School of Medicine , Suwon , South Korea
4. Department of Nuclear Medicine and Molecular Imaging, Ajou University School of Medicine , Suwon , South Korea