Affiliation: | 1. Division of Equine Veterinary Studies, the Royal (Dick) School of Veterinary Studies and Roslin Institute, The University of Edinburgh, Easter Bush Veterinary Centre, Midlothian, EH25 9RG, Scotland, UK;2. PO Box 210, Tulbagh 6820, South Africa;3. Institute for Veterinary Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, Justus-Liebig-University Giessen, Frankfurter Str. 98, Gießen D-35392, Germany |