1. College of Medicine and Allied Health Sciences, Federal University Dutse, Jigawa State
2. Department of Pharmacognosy, University of Ibadan, Ibadan, Oyo State, Nigeria
3. Jinnah Sindh Medical University, Karachi Cantonment Karachi, Karachi City, Sindh
4. Institute of Dentistry CMH Lahore Medical College, Lahore, Pakistan
5. Department of Medical Research circle, Bukavu, Democratic Republic of Congo