“…Five studies find evidence that e-cigarette MLSA laws reduce youth e-cigarette use (Nguyen, 2020;Dave et al, 2019;and Abouk and Adams, 2017b;Pesko,3;DeSimone et al 2022). E-cigarette MLSA laws may also raise cigarette use according to five studies (Friedman, 2015;Pesko et al, 2016;Dave et al, 2019;Pesko and Currie, 2019;Pesko et al, 2023) or reduce it according to one study (Abouk and Adams, 2017b).…”