| 1 | http://www.cancer.gov/cancertopics/types/breast |
| 2 | http://www.cancer.gov/cancertopics/types/colon-and-rectal |
| 3 | http://www.cancer.gov/cancertopics/types/ovarian |
| 4 | http://www.cancer.gov/search/clinical_trials/results_clinicaltrialsadvanced.asp x?protocolsearchid=167622 |
| 5 | http://www.cancer.gov/search/clinical_trials/results_clinicaltrialsadvanced.asp x?protocolsearchid=167611 |