Morris Celeste, Watson Katherine, Schwartz Diana, and Pereira Richard. “Nonpuerperal Chronic Endometritis With Pyometra Causing Systemic Illness in a Production Sow”. Clinical Theriogenology 15 (December 1, 2023). Accessed February 14, 2025. https://clinicaltheriogenology.net/index.php/CT/article/view/9806.