1. Department of Developmental Genetics, Institute of Advanced Medicine Wakayama Medical University Wakayama Japan
2. Division of Reproductive Engineering, Center for Animal Resources and Development, Institute of Resource Development and Analysis Kumamoto University Kumamoto Japan
3. Division of Reproductive Biotechnology and Innovation, Institute of Resource Development and Analysis Kumamoto University Kumamoto Japan
4. Department of Pediatric Urology Jichi Medical University, Children's Medical Center Tochigi Tochigi Japan
5. Laboratory Animal Center Wakayama Medical University Wakayama Japan