All Things Considered
<iframe src="http://www.npr.org/player/embed/1138440/138440" width="100%" height="290" frameborder="0" scrolling="no">
Federal health officials are reaffirming the importance of mammograms for women 40 and over. Danish research has raised questions about the value of the preventive exams for breast cancer. NPR's Joanne Silberner reports.
NPR thanks our sponsors
Become an NPR sponsor
Support The Programs You Love