Molecular characterization of coronaviruses isolated from quail farm with egg production problems in Brazil - Caserta, Leonardo Cardia; Barbané, A. C.S.; Martini, M. C.; Durães-Carvalho, R.; Sakata, S. T.; Ferreira, Helena Lage; Arns, Clarice Weis (International Symposium on Avian Corona- and Pneumoviruses and Complicating Pathogens, 2014)