div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Youth are exposed to e-cigarette advertisements from multiple sources Sources of e-cigarette advertisement exposure 144 MILLION youth are exposed at retail stores 105 MILLION youth src=https:reader035vdocumentsmxreader035viewer20220629215f0537387e708231d411dab0html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv