Exposure to Negative News Stories About Vaping, and Harm Perceptions of Vaping, Among Youth in England, Canada, and the United States Before and After the Outbreak of E-cigarette or Vaping-Associated Lung Injury ('EVALI'). - East, Katherine; Reid, Jessica L; Burkhalter, Robin; Wackowski, Olivia A; Thrasher, James F; Tattan-Birch, Harry; Boudreau, Christian; Bansal-Travers, Maansi; Liber, Alex C; McNeill, Ann; Hammond, David (Nicotine & Tobacco Research, 2022)