played. the study showed a 15% reduction for women in their 40s and 32 reduction for women in their 60s. but they found that false positives resulted in anxiety and unnecessary surgery. >> there's a different study every week that says mammograms don't work, screening doesn't work? >> i've had two scarce. >> you've got to. >> unless there is a better option put out there, these numbers don't do anything for me. are you going to not get screenings because you might get anxious or you might have to have another screening? >> i sat there for three weeks with something that they thought they saw and found out they didn't.