Osman A, Younis W, Sultan S. Genetic characterization of velogenic and lentogenic Newcastle disease viruses circulating among broiler chickens in Al-wadi Al-gadid Governorate, Egypt (2021). JAVR [Internet]. 2024Oct.7 [cited 2024Nov.21];14(7):1241-7. Available from: https://advetresearch.com/index.php/AVR/article/view/2047