Institution: | 1. Department of Anatomy Embryology, Faculty of Veterinary Medicine, Kafrelsheikh University, El-Geish Street, Kafrelsheikh Post Box 33516, Egypt;2. Department of Veterinary Basic Sciences, The Royal Veterinary College, Royal College Street, Camden, London NW1 0TU, UK;3. School of Biological Sciences, University of Reading, Whiteknights, PO Box 228, Reading, Berkshire RG6 6AJ, UK |