“…Of the 20 studies in the final review, 10 (50%) [49,50,53,54,[56][57][58][60][61][62] were conducted in the USA, 6 (30%) in the UK [45,46,48,52,55,59], 2 (10%) in South Africa [44,51], and 2 in Bangladesh (10%) [43,47]. 55% of the included studies focused their interventions on smoking cessation [43,45,47,50,54,[56][57][58][59]61,62], 35% on alcohol drinking cessation [46,48,49,52,53,55,60], and 10% targeted both risk factors [44,51]. Table S1 in the Supplementary Materials provides further details on the characteristics of the studies.…”