GUTIÉRREZ RUÍZ, E. J., RAMÍREZ CRUZ, G. T., & CÁMARA GAMBOA, E. (2009). Infectious bronchitis serological survey using SIN6/YUC/ MEX/96 virus in backyard chickens from 30 communities in the State of Yucatan in Mexico. Veterinaria México OA, 33(002). https://doi.org/10.21753/vmoa.33.002.68