1. American Cancer Society (2014a) Medicare coverage for cancer prevention and early detection. http://www.cancer.org/healthy/findcancerearly/cancerscreeningguidelines/medicare-coverage-for-cancer-prevention-and-early-detection . Accessed 10 Aug 2014
2. American Cancer Society (2014b) Breast cancer: early detection. http://www.cancer.org/acs/groups/cid/documents/webcontent/003165-pdf.pdf . Accessed 30 Oct 2014
3. American College of Obstetricians and Gynecologists (2011) Breast cancer screening. Washington (DC): American College of Obstetricians and Gynecologists (ACOG); Aug 11 p (ACOG practice bulletin; no. 122)
4. American College of Radiology (2014) Mammography Accreditation Program requirements. http://www.acr.org/~/media/ACR/Documents/Accreditation/Mammography/Requirements.pdf . Accessed 10 Aug 2014
5. Armstrong K, Moye E, Williams S, Berlin JA, Reynolds EE (2007) Screening mammography in women 40 to 49 years of age: a systematic review for the American College of Physicians. Ann Intern Med 146(7):516–526