Roy, K S, S Prabhakar, V K Gandotrn, Opinder Singh, and Narinder Singh. 2011. “Histopathological Changes in the Ovary of a Bitch Suffering from Pyometra”. The Indian Journal of Animal Sciences 76 (11). https://epubs.icar.org.in/index.php/IJAnS/article/view/4469.