@article{articlebf32d30f,
title   = {Increased level of protection of respiratory tract and kidney by combining different infectious bronchitis virus vaccines against challenge with nephropathogenic Brazilian genotype subcluster 4 strains},
author = {De Wit, J. J and Brandão, Paulo Eduardo and Torres, C. A and Koopman, R and Villarreal, L. Y},
year = {2015},
doi = {10.1080/03079457.2015.1058916},
journal   = {Avian Pathology}
}