“…Out of the six studies that assessed effectiveness and costeffectiveness, one study applied randomised controlled trial methodology (Ward et al, 2012), one employed an open label study (Jeremias et al, 2012), two were cohort studies (Higashi and Barendregt, 2011;Gilbert et al, 2004), one used cross-sectional data analysis (Srivastava et al, 2013), and one used systemic data collection, followup and evaluation to design a free pilot model smoking cessation clinic (Zhu et al, 2009). For the ten studies that assessed physicians' capacity, eight were cross-sectional surveys (Vanphanom et al, 2011;Zhou et al, 2010;Muller and Wehbe, 2008;Heydari et al, 2012;Merill et al, 2009;Raw et al, 2010;Panda et al, 2013;and Pine-Abata et al, 2012), one employed stratified random sampling methodology (Gong et al, 2012), and the last was a review (Li et al, 2007).…”