Cassadra Ann Bare Bailey, C. S., Heitzman, J. M., Buchanan, C. N., Bare, C. A., Sper, R. B., Borst, L. B., … Whitacre, M. (2012). B-mode and Doppler ultrasonography in pony mares with experimentally induced ascending placentitis. EQUINE VETERINARY JOURNAL, 44, 88–94. https://doi.org/10.1111/j.2042-3306.2012.00658.x