1. Department of Clinical Pharmacy and Pharmacy Administration; Obafemi Awolowo University; Ile-Ife Nigeria
2. Department of Pharmacology; Obafemi Awolowo University; Ile-Ife Nigeria
3. Department of Pharmaceutical Chemistry; Faculty of Pharmacy; Obafemi Awolowo University; Ile-Ife Nigeria
4. Department of Medical Pharmacology and Therapeutics; College of Medicine; Obafemi Awolowo University; Ile-Ife Nigeria
5. School of Medicine-Greenville; University of South Carolina; Greenville GA USA
6. Chemistry and Biochemistry; University of Wisconsin- Milwaukee; Milwaukee WI USA