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7. Identification of recent infectious bronchitis virus isolates that are serologically different from current vaccine strains. King DJ. Avian Dis; 1988; 32(2):362-4. PubMed ID: 2840885 [Abstract] [Full Text] [Related]
8. Cross-protection studies with vaccine strain H-120 of infectious bronchitis virus using ciliary activity. al-Tarcha B, Sadoon SA. Acta Vet Hung; 1991; 39(1-2):95-101. PubMed ID: 1661063 [Abstract] [Full Text] [Related]
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