References
- . Sobeslavsky O. Prevalence of markers of hepatitis B virus infection in various countries: a WHO collaborative study. Bull WHO 58: 621–628, 1980.
- . Sobeslavsky O. HBV as a global problem. In: Vyas GN, Cohen SN, Schmidt R, eds. Viral hepatitis. Philadelphia: The Franklin Institute Press, 347–356, 1978.
- . Stevens CE, Beasley P, Tsui J, Lee WC. Vertical transmission of hepatitis B antigen in Taiwan. N Engl J Med 292: 771–774, 1975.
- . Barin F, Perrin J, Chotard J, Denis F, N'Doye R, Diop Mar I, Chiron JP, Coursaget P, Goudeau A, Maupas P. Cross-sectional and longitudinal epidemiology of hepatitis B in Senegal. Prog Med Virol 27: 148–167, 1981.
- . Bowry TR. Seroepidemiology of hepatitis B in an urban population of Nairobi, Kenya. J Infect Dis 148: 1122, 1983.