(Photo: Dean J. Koepfler / The News Tribune via AP file)
The percentage of U.S. high school students who say they have tried e-cigarettes has doubled in the past year to 10 percent, government researchers reported Thursday.
Source: nbcnews.com
(Photo: Dean J. Koepfler / The News Tribune via AP file)
The percentage of U.S. high school students who say they have tried e-cigarettes has doubled in the past year to 10 percent, government researchers reported Thursday.