Assia Allaoui, Karina Bachtarzi, Lilia Belkacem, Mohamedsalah Beguiret (2022) “Comparative Study of the Efficiency of the Inactivated H9n2 Vaccine against Avian Influenza in Broiler Chickens”, Pakistan Journal of Medical & Health Sciences, 16(09), p. 363. doi: 10.53350/pjmhs22169363.