Simultaneous detection of infectious bronchitis virus and avian metapneumovirus genotypes A, B, and C by multiplex RT-qPCR assay in chicken tracheal samples in Ecuador oleh Anthony Loor-Giler, Anthony Loor-Giler, Claire Muslin, Claire Muslin, Silvana Santander-Parra, Dayana Coello, Dayana Coello, David De la Torre, Hernán Abad, Luis Nuñez, Luis Nuñez