1. Web Directory of Cancers of the Colon, Rectum and Anus - CancerIndex -- Cancerindex
The vast majority of colon and rectum cancers are adenocarcinomas, around 10% of these are mucinous (protein contained in mucus) The median age at diagnosis...
http://spade39.ncl.ac.uk/clinks2b.htm

2. Abdomen and rectum and anus /
Abdomen and rectum and anus; edited by Charles Rob, Rodney Smith and Sir Clifford Naunton Morgan.. Abdomen and rectum and anus / Becker Medical Library, Was...
http://medcat.wustl.edu/catflat/BAB/B491262.html

3. Definition: rectosigmoid junction from Online Medical Dictionary -- Cancerweb: Main Page Index
rectosigmoid junction from Online Medical Dictionary.
http://cancerweb.ncl.ac.uk/cgi-bin/omd?rectosigmoid+junction