Roshdy, Sally, Rafik Soliman, Manal Aly, Lamiaa Omar, Ahmed Sameer, Heidy Abo-Elyazeed, and Hassan Aboul-Ella. 2023. “Preparation of a Newly Developed Trivalent Pasteurella Multocida, Avibacterium Paragallinarum, and Ornithobacterium Rhinotracheale Vaccine With an Evaluation of Its Protective Efficacy in Chickens”. Journal of Advanced Veterinary Research 13 (5):737-42. https://advetresearch.com/index.php/AVR/article/view/1320.