UPDATE 1-E-cig use soared, cigarette use fell among U.S. youth in 2014-CDC
April 16, 2015 at 15:02 PM EDT
WASHINGTON, April 16 (Reuters) - Electronic cigarette use among U.S. middle and high school students tripled in 2014 while cigarette use fell to record lows, according to provocative new data that is likely to intensify debate over whether e-cigarettes are a boon or bane to public health.