5. Shi Q, Andre T, Grothey A, et al: Comparison of outcomes after fluorouracilbased adjuvant therapy for stages II and III colon cancer between 1978 to 1995 and 1996 to 2007: Evidence of stage migration from the ACCENT database. J Clin Oncol 31:3656-3663, 2013
6. Bernhoff R, Martling A, Sjo¨ vall A, et al: Improved survival after an educational project on colon cancer management in the county of Stockholm: A population based cohort study. Eur J Surg Oncol 41:1479-1484, 2015
7. Breugom AJ, Bastiaannet E, Boelens PG, et al: Adjuvant chemotherapy and relative survival of patients with stage II colon cancer: A EURECCA international comparison between the Netherlands, Denmark, Sweden, England, Ireland, Belgium, and Lithuania. Eur J Cancer 63:110-117, 2016
8. Iversen LH, Green A, Ingeholm P, et al: Improved survival of colorectal cancer in Denmark during 2001-2012: The efforts of several national initiatives. Acta Oncol 55:10-23, 2016 (suppl 2) DOI: 10.1200/JCO.2016.68.9323; published online ahead of print at www.jco.org on August 15, 2016.