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Card KG, Gibbs J, Lachowsky NJ, Hawkins BW, Compton M, Edward J, Salway T, Gislason MK, Hogg RS.Card KG, et al.JMIR Public Health Surveill. 2018 Aug 8;4(3):e61. doi: 10.2196/publichealth.8931.JMIR Public Health Surveill. 2018.PMID: 30089609Free PMC article.