1. American Cancer Society. Cancer facts & figures 2008. Atlanta: American Cancer Society, 2008.
2. Cancer Care Ontario (2003). Surgical management of early-stage invasive breast cancer. Practice guideline report #1-1 version 2.2003. Available: http://www.cancercare.on.ca/pdf/pebc1-1f.pdf . Accessed 31 July 2008.
3. MD Anderson Cancer Center. Breast cancer—invasive. 2008. Available: http://utm-ext01a.mdacc.tmc.edu/mda/cm/CWTGuide.nsf/09ab7c4a1b0e085d86256826006ed1c5/94a2cdbf57f7a90c862563c1005dfa56/$FILE/Br%20Invasive%20V8%20Final%2002_01_08%20grp.pdf . Accessed 31 July 2008.
4. National Cancer Institute. Breast cancer treatment (PDQ). Stage I, II, IIIA, and operable IIIC breast cancer. 2008. Available: http://www.cancer.gov/cancertopics/pdq/treatment/breast/HealthProfessional/page7 . Accessed 31 July 2008.
5. National Comprehensive Cancer Network. Breast cancer treatment. 2008. Available; http://www.nccn.org/patients/patient_gls/_english/_breast/5_treatment.asp . Accessed 31 July 2008.