C.A. Turpin, L. Ahenkorah, W.K.B.A. Owiredu, E.F. Laing and N. Amidu
Journal of Medical Sciences 8 ( 5 ): 443 - 451 , 2008
L. Ahenkorah, W.K. B.A. Owiredu, E. F. Laing, N. Amidu and C. A. Turpin
Journal of Medical Sciences 8 ( 8 ): 691 - 698 , 2008