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The KUMC Institutional Review Board determined the consent of organ donation for research covers research use of this material and, since lungs were obtained from deceased individuals with minor, de-identified information, its use is not considered human subjects research as defined by CFR 46.102

The only explanation, he says, was that these e-cigs just didnt deliver nicotine efficiently. His team published its findings July 25 in PLOS One

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This video from DNews gives its two cents on if eCigs are safer