1. Department of Histology and Cell Biology Graduate School of Medical Sciences Kanazawa University Kanazawa Japan
2. Department of Urology St Marianna University School of Medicine Kawasaki Japan
3. Department of Biology School of Biological Sciences Tokai University Sapporo Japan
4. Department of Clinical Engineering Faculty of Health Sciences Komatsu University Komatsu Japan
5. Division of Male Infertility Sanno Hospital Center for Human Reproduction for IVF International University of Health and Welfare Nasushiobara Japan
6. Department of Integrative Cancer Therapy and Urology School of Medical Sciences Kanazawa University Kanazawa Japan