“PRODUCTION OF FOWLPOX VACCINE VIRUS IN CHICK EMBRYO DERMAL TISSUE CULTUE ”. The Iraqi Journal of Veterinary Medicine 20, no. 1 (June 28, 1996): 43–53. Accessed May 11, 2024. https://jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/1572.