Chandhar, I. P., Swamy, M., Verma, Y., Dubey , A., & Singh, A. P. (2019). Prevalence and Pathology of Chronic Respiratory Disease in Broilers. International Journal of Livestock Research, 9(11), 75–84. Retrieved from http://ijlr.org/ojs_journal/index.php/ijlr/article/view/1052