1. Horstmann DM. Epidemiology of poliomyelitis and allied diseases. Yale J Biol Med1963;36:5–26.
2. Olin G. The epidemiologic pattern of poliomyelitis in Sweden from 1905 to 1950. In: Poliomyelitis; Papers and Discussion. The Second International Poliomyelitis Conference 1952. Philadelphia: Lippincott, 1952, pp.367–75.
3. Bodian D, Horstmann DM. Polioviruses. In: Horsfall FL (ed.). Viral and Rickettsial Infection in Man. Philadelphia: Lippincott, 1965, pp.430–73.
4. Nathanson N, Martin JR. The epidemiology of poliomyelitis: enigmas surrounding its appearance, epidemicity, and disappearance. Am J Epidemiol1979;110:672–92.
5. Paul JR. A History of Poliomyelitis. New Haven: Yale University Press, 1971.