1. Pharmacology, Therapeutics and Toxicology Department; College of Medicine; University of Lagos; Idiaraba Lagos Nigeria
2. Pharmacology Department; Lagos State University College of Medicine; Ikeja Lagos Nigeria
3. National Pharmacovigilance Centre; National Agency for Food and Drug Administration and Control; Abuja Nigeria
4. Department of Internal Medicine; Meharry Medical College; 1005 Dr. D.B. Todd Jr. Blvd. Nashville Tennessee