Pathogenicity of brazilian IBV variants of chicken (BR-I) and pigeon (mass) origin in chickens - Martini, Matheus Cavalheiro; Caserta, Leonardo Cardia; Santos, Márcia Mercês Aparecida Bianchi dos; Barnabé, Ana Caroline de Souza; Durães-Carvalho, R; Padilla, M. A; Simas, P. V. M.; Ferreira, Helena Lage; Arns, Clarice Weis (Global Alliance for Research on Avian Diseases, 2015)