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. 2017 Dec 16;27(e1):e25–e33. doi: 10.1136/tobaccocontrol-2017-053947

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Weekly Google search volume for HNB tobacco/e-cigarette from 2013 to 2017 (past 4 years) in Japan. Note: Ploom sales began online in December 2013 (▲green triangle no. 1) and Ploom Tech sales began in March 2016 (▲green triangle no. 2), but both soon stopped because of product shortages. Ploom Tech sales restarted in June 2016 (▲green triangle no. 3). IQOS was sold only in Nagoya city as of November 2014 (▲blue triangle no. 1), with expanded sales to 12 prefectures in September 2015 (▲blue triangle no. 2), and further expansion to 35 prefectures in April 2016 (▲blue triangle no. 3). IQOS’s results before November 2014 were omitted. British American Tobacco announced on 9 November 2016 (▲purple triangle no. 1) that glo would be sold from 12 December 2016 (▲purple triangle no. 2). glo’s results before October 2016 were omitted. The above-mentioned information was reported by various news media, such as newspapers, television news and internet news. ※pictures were obtained from official websites except for the e-cigarette. Ame-talk: http://www.tvasahi.co.jp/ametalk/; Ploom: https://www.ploom.jp; IQOS: https://www.iqos.jp; glo: https://www.discoverglo.com/jp. HNB, heat-not-burn.