Poulton, P. J., A. D. Fisher, P. D. Mansell, and M. F. Pyman. “Retrospective Study: Investigating the Downer Cow Syndrome”. The Bovine Practitioner, vol. 53, no. 1, Feb. 2019, pp. 54-59, doi:10.21423/bovine-vol53no1p54-59.