A recent Canadian study found that mammogram screenings do n't reduce cancer deaths . Mammographers slammed it , saying researchers cheated and screening machines were old . Gilbert Welch : Cheating charges unfounded , and pro-screening studies used older machines . Welch : The new report is based on a review of the existing research.
A recent Canadian study found that mammogram screenings do n't reduce cancer deaths . Mammographers slammed it , saying researchers cheated and screening machines were old . Gilbert Welch : Cheating charges unfounded , and pro-screening studies used older machines . Welch : The real problem is that mammography results in women getting treatment they do n't need .