3Zhang L X, Tu D H, He G X, et al. Risk of tuberculosis infection and tuberculous meningitis after discontinuation of bacillus Calmette-Guerin in Beijing [J]. Am J Respir Crit Care Med. 162:1314- 1317.
4Zhang L X, Tu D H, Enarsen D A. The impact of directly-observed treatment on the epidemiology of tuberculosis in Beijing [J]. Int J Tuberc Lung Dis,2000,4(9) : 1 - 7.
5Zhang L X, Kan G Q, Tu D H, et al. Trend of initial drug resistance of tubercle bacilli isolated from new patients with pulmonary tuberculosis and its correlation with the tuberculosis programme in Beijing [J]. Tubercle and Lung Disease, 1995,76:100 - 103.
6Zhang L X, Kan G Q .Tuberculosis Control programme in Beijing[J]. Tubercle and Lung Disease, 1992,73:162 - 166.
7Four Report to the Medical Research Council by its Tuberculosis Vaccine Clinical Trial Committee [R].Bull WHO, 1972,46:371.
