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