1. Sutherland I. The Ten Year Incidence of Clinical Tuberculosis Following ‘Conversion’ in 2550 Individuals Aged 14 to 19 at the Time of Conversion. The Hague: TSRU Progress Report, KNCV, 1968.
2. Medical Research Council. BCG and vole bacillus vaccines in the prevention of tuberculosis in adolescence and early adult life. Bull World Health Organ1972;46:371–85.
3. Ferebee SH. Controlled chemoprophylaxis studies in tuberculosis: a general review. Adv Tuberc Res1969;17:28–106.
4. Centers for Disease Control. Screening for tuberculosis and tuberculous infection in high-risk populations: recommendations of the Advisory Committee for Elimination of Tuberculosis. MMWR1990; 39(RR-8):1–7.
5. Barnes PF, Bloch AB, Davidson PT, Snider DE. Tuberculosis in patients with human immunodeficiency virus infection. N Engl J Med1991; 324:1644–50.