1. Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan
2. Department of Obstetrics and Gynecology, Hiroshima Prefectural Hospital, Hiroshima, Japan
3. Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
4. Department of Applied Urology and Molecular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
5. Department of Oral and Maxillofacial Pathobiology, Basic Life Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan