Bagley, Clell V., Howard R. Bingham, and Jeffery O. Hall. “The Association Between Serum Mineral and Vitamin A and E Concentration and Respiratory Disease in Beef Calves Entering Backgrounding Lots”. The Bovine Practitioner 37, no. 1 (February 1, 2003): 68–73. Accessed April 28, 2024. https://bovine-ojs-tamu.tdl.org/bovine/article/view/1788.