Affiliation: | 1. Institute of Veterinary Anatomy, Histology and Embryology, Justus-Liebig-University of Giessen, Giessen, Germany;2. Clinic of Small Animals, c/o Institute of Veterinary Anatomy, Histology and Embryology, Justus-Liebig-University of Giessen, Giessen, Germany Anatomy and Embryology Department, Faculty of Veterinary Medicine, University of Mansoura, Mansoura, Egypt;3. Clinic of Small Animals, c/o Institute of Veterinary Anatomy, Histology and Embryology, Justus-Liebig-University of Giessen, Giessen, Germany |