Dartmouth's Gilbert Welch, a well-known analyst of the usefulness of mammography, found that since the early 1980's -- when screening mammography was widely introduced -- there has been a doubling in the rate of early stage breast cancer. The problem, he says, is we're not seeing what should be a corresponding decrease in late stage cancer.
Quick Read: With Routine Mammograms, Some Breast Cancers May Be Overtreated
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