[1] Univ Ibadan, Ibadan, Nigeria
[2] Univ Ilorin, Dept Pharmacol & Therapeut, Fac Basic Clin Sci, Ilorin, Nigeria
[3] Lagos State Univ, Coll Med, Dept Pharmacol Therapeut & Toxicol, Fac Basic Clin Sci, Lagos, Nigeria
[4] Lagos State Univ, Coll Med, Dept Pathol & Forens Med, Fac Basic Clin Sci, Lagos, Nigeria
[5] Lagos State Univ, Coll Med, Dept Oral Pathol & Forens Med, Fac Dent, Lagos, Nigeria
[6] Univ Wisconsin, Dept Anim Sci, 1675 Observ Dr, Madison, WI USA
[7] Univ Wisconsin, Dept Dermatol, Madison, WI USA