I. I. Hasan, S. T. Rasheed, and M. K. Shakor, “Pathological, molecular and phylogenic study of fowlpox virus in domesticated chickens of Tikrit City, Iraq”, Braz. J. Vet. Res. Anim. Sci., vol. 58, p. e176255, Apr. 2021, doi: 10.11606/issn.1678-4456.bjvras.2021.176255.