1. S. Din:
Department of Anatomy and Histology, University of Veterinary and Animal Sciences, Lahore, Pakistan
2. S. Masood:
Department of Anatomy and Histology, University of Veterinary and Animal Sciences, Lahore, Pakistan
3. H. Zaneb:
Department of Anatomy and Histology, University of Veterinary and Animal Sciences, Lahore, Pakistan
4. H. Rehman:
Department of Physiology, University of Veterinary and Animal Sciences, Lahore, Pakistan
5. S. Ashraf:
Abdul Wali Khan University, Mardan, Pakistan
6. I. Khan:
Department of Anatomy and Histology,
7. M. Shah:
Agricultural University Peshawer, Pakistan
8. S. A. Hadi:
Department of Anatomy and Histology, University of Veterinary and Animal Sciences, Lahore, Pakistan