<qa>  What is the basis-case of implementing HIV-TB services independently?iv To determine the cost-effectiveness of implementing HIV-TB services using Quality Improvement methodology Intervention Clinics versus the base-case of implementing HIV-TB services independently, through a within-trial approach using both health service e.g. training, remuneration and patient costs e.g. travel, opportunity costs as inputs. We will also calculate total intervention costs to assess its affordability and explore cost-effectiveness under various scenarios e.g. different TB-HIV co-infection rates using decision analytical modeling. 