@article{article64f69927, title = {Orchitis in roosters with reduced fertility associated with avian infectious bronchitis virus and avian metapneumovirus infections}, author = {Villarreal Buitrago, Laura Yaneth and Brandão, Paulo Eduardo and Chacón, Jorge Luis and Assayag, M. S and Maiorka, Paulo César and Raffi, P and Saidenberg, A. B. S and Jones, R. C and Ferreira, Antonio José Piantino}, year = {2007}, doi = {10.1637/7815-121306-REGR4.1}, journal = {Avian Diseases} }