1. Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
2. Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea.
3. Department of Radiation Oncology, Kangwon National University Hospital, Chuncheon, Republic of Korea.
4. Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
5. Department of Radiology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea.