Schkeeper A. E., Cole R. C., Brawner W. R., Gard J. A., Maxwell H. S. and Edmondson M. A. (2017) “Ultrasound Anatomy of the Penis in Normal Bos Taurus Bulls”, Clinical Theriogenology, 9(4), pp. 545-561. Available at: https://clinicaltheriogenology.net/index.php/CT/article/view/10004 (Accessed: 13February2025).