Aboubacar, Samaila, et al. “Tuberculosis in Vaccinated Versus Unvaccinated Children With BCG Vaccine in Niamey: Epidemiological, Diagnostic and Outcome Aspects”. European Scientific Journal, ESJ, vol. 18, no. 36, Nov. 2022, p. 16, doi:10.19044/esj.2022.v18n36p16.