MOESM1 of Meta-analysis of the prevalence of tuberculosis in diabetic patients and its association with cigarette smoking in African and Asian countries WagnewFasil EshetieSetegn AlebelAnimut DessieGetenet TesemaCheru AbajobirAmanuel 2018 Additional file 1: Figure S1. Flow chart describing selection of studies for a systematic review and meta-analysis of the prevalence of tuberculosis among diabetes patients and its association with cigarette smoking.