Kranenburg L C, Thelen M H M, Westermann C M, de Graaf-Roelfsema E, van der Kolk J H
Department of Equine Sciences, Medicine Section, Faculty of Veterinary Medicine, University of Utrecht, Yalelaan 114, 3508 TD Utrecht, The Netherlands.
Vet Rec. 2010 Nov 13;167(20):790-1. doi: 10.1136/vr.c5125.