| 1 | http://www.cancer.gov/clinicaltrials/search |
| 2 | http://www.cancer.gov/cancertopics/types/colon-and-rectal |
| 3 | http://www.cancer.gov/clinicaltrials/ft-more-than-one-type |
| 4 | http://www.cancer.gov/clinicaltrials/ft-supportive-care |
| 5 | http://www.cancer.gov/clinicaltrials/ft-NCCTG-N0147 |
| 6 | http://www.cancer.gov/clinicaltrials/ft-NCI-04-C-0229 |
| 7 | http://www.cancer.gov/clinicaltrials/ft-UARIZ-00-0430-01 |
| 8 | http://www.cancer.gov/clinicaltrials/ft-SWOG-S0600 |
| 9 | http://www.cancer.gov/clinicaltrials/ft-NSABP-C-09 |
| 10 | http://www.cancer.gov/clinicaltrials/ft-colon-cancer?keyword=Colon+rectal&page=2 |
| 11 | http://www.cancer.gov/clinicaltrials/ft-colon-cancer?keyword=Colon+rectal&page=3 |
| 12 | http://www.cancer.gov/clinicaltrials/ft-colon-cancer?keyword=Colon+rectal&page=4 |