@article{unknown2016vaporous,
  title={Vaporous marketing: Uncovering pervasive electronic cigarette advertisements on Twitter},
  author={Eric M. Clark and Chris Jones and Jake Williams and Allison Kurti and Mitchell Norotsky and Chris Danforth and Peter Sheridan Dodds},
  journal={PLoS ONE},
  volume={11},
  number={7},
  journalpage={http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0157304#abstract0},
  year={2016},
  citations={}
}