Many confused by new breast cancer guidelines

Nov. 16: Experts in preventative medicine are revising their recommendation for routine mammography, presenting women with new advice about breast cancer screening that calls into question 25 years of standard practice. NBC Chief Medical Editor Dr. Nancy Snyderman reports. (Nightly News)

MSNBC | November 16, 2009

Tags:. .mammography. .guidelines. .breast. .nov. .nancy snyderman