1. Department of Urology; Yokohama City University School of Medicine; Yokohama Kanagawa Japan
2. International Research Center for Medical Sciences; Kumamoto University; Kumamoto Japan
3. Department of Ophthalmology; Yokohama City University School of Medicine; Yokohama Kanagawa Japan
4. Department of Molecular Pathology; Yokohama City University School of Medicine; Yokohama Kanagawa Japan