Y. Doustar, D. Mohajeri, Y. Anzabi, and M. Nazeri, “Experimental Study of Renal Tubular Cells Apoptosis Subsequent to Infectious by Influenza Virus (H9N2) in SPF Chickens”, Int. J. Poult. Sci., vol. 10, no. 11, pp. 891–894, Oct. 2011, doi: 10.3923/ijps.2011.891.894.