2World Health Organization. WHO global tuberculosis con- trol report 2010 [J]. Cent Eur J Public Health, 2010, 18 (4): 237.
3Gninafon M Trcbucq A, Rieder HL . Epidemiology of tuk berculosis in Benin [J]. Int J Tuberc Lung Dis, 2011, 15 (1): 61-66.
4Nigatu T, Abraha M. Epidemiologicla analysis of tuberculo- sis in Ethiopia: a ten-year trend analysis [J]. East Afr J Public Health, 2010, 7 (2): 182-186.