Histopathological changes in Thymus and Bursa of fabricious caused by live attenuated vaccines against Newcastle disease virus in Broiler chickens. Journal of Hama University , [S. l.], v. 5, n. 14, 2022. Disponível em: https://journal.hama-univ.edu.sy/huj/article/view/1080. Acesso em: 6 jun. 2026.