1. Department of Human Anatomy, Kaduna State University, Zaria, Nigeria
2. Department of Human Anatomy, Ahmadu Bello University, Zaria, Nigeria
3. Department of Human Anatomy, Yusuf Maitama Sule University, Kano, Nigeria
4. Department of Veterinary Anatomy, Ahmadu Bello University, Zaria, Nigeria
5. Department of Human Physiology, Ahmadu Bello University, Zaria, Nigeria
6. Department of Human Anatomy, University of Maiduguri, Maiduguri, Nigeria