Dr. Daniel B. Kopans writes: Further, the public is mostly hearing one side of the most recent attack on mammography screening. The recent study that suggests breast cancer is “overdiagnosed” and “overtreated” is not based on direct data, but on assumptions and estimates. Using actual data, there is no “overdiagnosis” of the small invasive cancers whose detection saves lives.
Unlimited access to BostonGlobe.com for only 99 cents for the first 4 weeks.Sign up
Are you a home delivery subscriber?
Get FREE access as part of your print subscriptionStart Here
Contact us for help