M.G. Ekpenyong, S.P. Antai, J.P. Essien and G.D. Iwatt
International Journal of Biological Chemistry 1 ( 1 ): 54 - 61 , 2007
International Journal of Biological Chemistry 1 ( 1 ): 29 - 37 , 2007
Trends in Applied Sciences Research 2 ( 2 ): 115 - 123 , 2007