Blue light like that from smartphones linked to some cancers, study finds

By Mark Lieber, CNN

Updated 2041 GMT (0441 HKT) April 27, 2018

The Sixth Street bridge over the Los Angeles River looks a bit different with old, left, and new streetlights.
Photos: Los Angeles LED streetlights
The Sixth Street bridge over the Los Angeles River looks a bit different with old, left, and new streetlights.
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Hoover Street
Photos: Los Angeles LED streetlights
Hoover Street
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