Pathological Studies of A / Chicken / Tehran / ZMT - 173/99 (H9N2) Influenza Virus in Commercial Broiler Chickens of Iran

Jafar Pazani, Mehdi Vasfi Marandi, Javad Ashrafihelan, Seyyed Hossein Marjanmehr and Farid Ghods

International Journal of Poultry Science 7 ( 5 ): 502 - 510 , 2008