1. Department of Pathology Kure‐Kyosai Hospital, Federation of National Public Service Personnel Mutual Aid Associations Hiroshima Japan
2. Department of Urology, Graduate School of Biomedical and Health Sciences Hiroshima University Hiroshima Japan
3. Department of Molecular Pathology, Graduate School of Biomedical and Health Sciences Hiroshima University Hiroshima Japan
4. Department of Urology Kure‐Kyosai Hospital, Federation of National Public Service Personnel Mutual Aid Associations Hiroshima Japan
5. Department of Anatomical Pathology Hiroshima University Hospital Hiroshima Japan