1 Department of Medical Genome Sciences, Cancer Research Institute, Sapporo Medical University School of Medicine, Sapporo, Japan. idogawa@sapmed.ac.jp.
2 Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan. idogawa@sapmed.ac.jp.
3 Department of Medical Genetics and Genomics, Sapporo Medical University School of Medicine, Sapporo, Japan.
4 Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan.
5 Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan.
6 Department of Medical Genome Sciences, Cancer Research Institute, Sapporo Medical University School of Medicine, Sapporo, Japan.