1. Department of Vascular Biology; Graduate School of Dental Medicine; Hokkaido University; Sapporo; Japan
2. Cardiovascular and Thoracic Surgery; Graduate School of Medicine; Hokkaido University; Sapporo; Japan
3. Department of Oral Pathology and Biology; Graduate School of Dental Medicine; Hokkaido University; Sapporo; Japan
4. DNA Sequencing Center Section; Okinawa Institute of Science and Technology Promotion Corporation; Onna; Okinawa; Japan
5. Departments of Urology; Graduate School of Medicine; Hokkaido University; Sapporo; Japan