L.C. Saalu, V.A. Togun, A.O. Oyewopo and Y. Raji
Journal of Applied Sciences 6 ( 14 ): 2889 - 2894 , 2006
J.A. Badmus, A.L. Adedeji, E.O. Omotoso, A.O. Oyewopo and A.O. Akintola
Research Journal of Medical Sciences 2 ( 4 ): 193 - 196 , 2008