1. Quantitative studies of mycobacterial populations in sputum and saliva;Yeager;Am Rev Respir Dis,1967
2. The infectiousness of human tuberculosis;Hertzberg;Acta Tuberc Scand,1957
3. The influence of the number of bacilli on the development of tuberculous disease in children;Van Zwanenberg;Am Rev Respir Dis,1960
4. Infectivity of pulmonary tuberculosis in relation to sputum status;Shaw;Am Rev Tuberc,1954
5. Contacts of cases of active pulmonary tuberculosis;Grzybowski;Bull Int Union Tuberc,1975