Haghighat-Jahromi, M., K. Asasi, H. Nili, and H. Dadras. “Role of Infectious Bronchitis Live Vaccine on Pathogenicity of H9N2 Avian Influenza Virus”. International Journal of Poultry Science 6, no. 11 (October 15, 2007): 838–841. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/863.