@article {165980,
	title = {Enhanced pathogenicity of low-pathogenic H9N2 avian influenza virus after vaccination with infectious bronchitis live attenuated vaccine, Veterinary World, 11 (7): 977-985},
	year = {2018},
	author = {ZM Ismail, and El-deeb, AH and MM El-Safty, and Hussein, H.A.}
}
