1. Animal Physiology and Phytopharmacology Laboratory University of Dschang Dschang Cameroon
2. Department of Biophysics Faculty of Medicine Suleyman Demirel University Isparta Turkey
3. Laboratory of Animal Biology and Physiology Department of Animal Organisms Biology University of Douala Douala Cameroon
4. Department of Physiology School of Medical Sciences Health Campus Universiti Sains Malaysia Kelantan Malaysia