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Vaccine-Derived Polioviruses: Is It Time to Stop Using the Word "Rare"?
Walter Dowdle and Olen Kew
The Journal of Infectious Diseases
Vol. 194, No. 5 (Sep. 1, 2006), pp. 539-541
Published by: Oxford University Press
Stable URL: http://www.jstor.org/stable/30085842
Page Count: 3