Elkomy, Ashraf, Mohamed Aboubakr, Elsayed Emam, and Mohammed Kassem. 2019. “Studies on the Effects of Cephradine and Colibacellosis on Immunological Status of Broiler Chicken Vaccinated With Newcastle Virus Vaccine”. International Journal of Pharmacology and Toxicology 7 (2): 17-21. https://doi.org/10.14419/ijpt.v7i2.29020.