Srisuwatanasagul, Kongkiat, Sayamon Sukjumlong, Sudson Sirivaidyapong, and Sinchai Pianchop. 2015. “AN IMMUNOHISTOCHEMICAL STUDY OF THE PROGESTERONE RECEPTOR (PR) EXPRESSION IN PYOMETRA CASES AND NORMAL UTERI AT THE TIME OF DIOESTRUS IN THE BITCH”. The Thai Journal of Veterinary Medicine 35 (2):57-64. https://he01.tci-thaijo.org/index.php/tjvm/article/view/36860.