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Politics : PRESIDENT GEORGE W. BUSH -- Ignore unavailable to you. Want to Upgrade?

To: gao seng who wrote (169178)8/8/2001 11:45:02 PM
From: puborectalis  Read Replies (2) | Respond to of 769669
 
take spelling lessons you moRRon.............Estimates of mammography sensitivity range from 75% to 90% with specificity from 90% to 95%. The positive predictive value of mammography for breast cancer ranges from 20% in women under age 50 to 60% to 80% in women age 50-69. Randomized clinical trials (RCTs) have demonstrated a 30% reduction in breast cancer mortality in women 50-69 years who are screened annually or biennially with mammograms.


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