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R. L. Witter, "Protection by Attenuated and Polyvalent Vaccines Against Highly Virulent Strains of Merek's Disease Virus," Avian Pathol. 11: 49-62 (1982) [#S452]. |
R. L. Witter et al., "Polyvalent Marek's Disease Vaccines: Safety, Efficacy and Protective Synergism in Chickens with Maternal Antibodies," Avian Pathol. 13: 75-92 (1984) [#S501]. |
Paoletti et al., (1984) PNAS 81:193. |