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J. K. Skeeles, P. D. Lukert, O. J. Fletcher, J. D. Leonard, Immunization Studies with a Cell-Culture-Adapted Infectious Bursal Disease Virus, Avian Diseases, Vol. 23, No. 2 (Apr. - Jun., 1979), pp. 456-465
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Skeeles et al. (1979) studied this question.
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