Polymorphonuclear neutrophils and Escherichia coli proteases involved in proteolysis of casein during experimental E. coli mastitis - Haddadi, K.; Prin-Mathieu, C.; Moussaoui, F.; Faure, G.C.; Vangroenweghe, F.; Burvenich, C.; Le Roux, Y. (International Dairy Journal, 2006)