%0 Journal Article %T Electronic cigarette usage patterns: a case study combining survey and social media data %A Zhan,, Yongcheng %A Etter,, Jean-François %A Leischow,, Scott %A Zeng,, Daniel %J Journal of the American Medical Informatics Association %V 26 %N 1 %@ 1067-5027 %D 2019-01-01 %I Oxford University Press %~ DeepDyve