ABDELWAHID, S. A., and IMA ELJALII. “Protection of Piglets Immunized With a Cloned Pseudorabies Virus”. Journal of the Hellenic Veterinary Medical Society 56, no. 4 (November 30, 2017): 307–310. Accessed November 30, 2022. https://ejournals.epublishing.ekt.gr/index.php/jhvms/article/view/15090.