1. Efficacy of BCG vaccine in the prevention of tuberculosis: meta-analysis of the published literature;Colditz;JAMA,1994
2. Meta-analysis in clinical trials;DerSimonian;Controlled Clin Trials,1986
3. Trial of BCG vaccines in south India for tuberculosis prevention;Tuberculosis Prevention Trial, Madras;Indian J Med Res,1980
4. Protective vaccination against tuberculosis with special reference to BCG vaccination;Aronson;Am Rev Tuberc,1948
5. BCG in the prevention of tuberculosis in an adult population;Coetzee;Proc Mine Med Off Assoc,1968