Nahdavi, S., Tavasoly, A., Pourbakhsh, S. A., Momayez, R., Shamsedini, M. (2007). 'The immunohistochemical study of lesions due to avian infectious brinchitis (Serotype 4/91)on different tissues in specific pathogen free chicks', Iranian Journal of Veterinary Medicine, 1(1), pp. 97-101. doi: 10.22059/ijvm.2008.65740