1. Department of Urology, Sapporo Medical University School of Medicine, Sapporo 060-8543, Japan
2. Department of Molecular Biology, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
3. Project for Cancer Epigenome, The Cancer Institute, Japanese Foundation for Cancer, Koto-ku, Tokyo 135-8550, Japan
4. Medical Genome Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan