1. Department of Obstetrics and Gynecology, School of Medicine, University of Occupational and Environmental Health, Japan
2. Department of Obstetrics and Gynecology, Kyushu Rosai Hospital, Japan Organization of Occupational Health and Safety
3. Department of Radiology, School of Medicine, University of Occupational and Environmental Health, Japan
4. 1st Department of Pathology and Oncology, School of Medicine, University of Occupational and Environmental Health, Japan
5. Department of Nursing of Human Broad Development, School of Health Sciences, University of Occupational and Environmental Health, Japan