1. Estimates of the worldwide incidence of eighteen major cancers in 1985.;DM Parkin;Int J Cancer,1993
2. Cancer statistics;A Jemal;CA Cancer J Clin,2006
3. Chinacdc website. Available: http://www.chinacdc.cn/tjsj/gjwstjsj/201206/W020120608368277572334.pdf. Accessed 2014 Jul 14.
4. Finlay IG, Pickford IR (1994) Colorectal carcinoma, in Lawson DH (ed): Current Medicine 4th edition, Edinburgh, Scotland, Churchill Livingstone pp: 51–64.
5. Cancer Stats Large Bowel—UK;UK Cancer Res;Cancer Stats Large Bowel—UK,2003