![]() And they also produced too many "false negative" results: They failed to find small, early and potentially curable cancers. That's because screening for lung cancer involved using standard chest X-rays, and they produced too many "false positive" results: They identified "spots" in the lungs that were harmless. Dear Reader: Until recently, my answer would have been "no." In the not-too-distant past, screening of people without symptoms - even smokers who were at high risk - was judged useless for lung cancer.
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