1. Tuberculosis in children;CM Perez-Velez;N Engl J Med,2012
2. World Health Organization. Global tuberculosis report. Geneva; 2015.
3. Challenges in diagnosing tuberculosis in children: A comparative study from Sudan;MM Elhassan;Int J Infect Dis,2015
4. World Health Organization 2012: Global Report for Research on Infectious Diseases of Poverty. Geneva: Switzerland. Available at http://whqlibdoc.who.int/publications/2012/9789241564489_eng.pdf.
5. Epidemiology and disease burden of tuberculosis in children: a global perspective;JA Seddon;Infect Drug Resist,2014