1. Cancer statistics, 2019
2. Center for Cancer Control and Information Services. National Cancer Canter, Japan 2018. [cited 20 September 2022]. Available from: https://ganjoho.jp/en/public/statistics/short_pred.html
3. Japanese Society for Cancer of the Colon and Rectum. Japanese Classification of Colorectal Carcinoma, Second English ed. Tokyo: Kanehara & Co., Ltd, 2009
4. National Comprehensive Cancer Network. Clinical Practice Guidelines in Oncology, Colorectal Cancer Screening (version 2.2016), 2016
5. The American Joint Committee on Cancer: the 7th Edition of the AJCC Cancer Staging Manual and the Future of TNM