1Zhang L X,Tu D H,Enarson D A.The impact of directly-observed treatment on the epidemiology of tuberculosis in Beijing [J].Int.J Tuberc Lung dis 2000,4(10)904～910.
2Zhang L X.Directly observed treatment for tuberculosis control[J].Tuberculosis,2003,801～808.
3Zhang L X,Kan G Q.Tuberculosis control program in Beijing [J].Tubercle Lung Disease,1992,73:162～166.
4Zhang L X,Tu D H,He G X,et al.Risk of tuberculosis infection and tuberculous meningitis after discontinuation of BCG in Beijing [J].Am J Respir Crit Care Med,2000,162(4):1314～1317.
5Zhang L X,Kan G Q,Tu D H,et al.Trend for 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.
6Euro TB (CESES/KNCV) and the national coordinators for tuberculosis surveillance in the WHO European Region.Surveillance of tuberculosis in Europe.Report on tuberculosis cases notified in 1996 [R].Euro TB,1998:1～95.
