1. Hokkaido University Hospital Department of Radiation Oncology, , Sapporo, Hokkaido 060-8648 , Japan
2. Hokkaido University Hospital Department of Gynecology, , Sapporo, Hokkaido 060-8648 , Japan
3. Hokkaido University Hospital Department of Diagnostic and Interventional Radiology, , Sapporo, Hokkaido 060-8648 , Japan
4. Hokkaido University Department of Radiation Oncology, Faculty of Medicine and Graduate School of Medicine, , Sapporo, Hokkaido 060-8638 , Japan
5. Hokkaido University Global center for Biomedical Science and Engineering, Faculty of Medicine, , Sapporo, Hokkaido 060-8638 , Japan
6. Hokkaido University Hospital Data Science Center, Promotion Unit, Institute of Health Science Innovation for Medical Care, , Sapporo, Hokkaido 060-8648 , Japan
7. Hokkaido University Graduate School of Medicine Department of Obstetrics and Gynecology, , Sapporo, Hokkaido 060-8638 , Japan