A. Hussein - University of Khartoum
F. Yassien - Daoud Research Group, Neurology, Khartoum, Sudan
A.A. Alib - Daoud Research Group, Neurology, Khartoum, Sudan
A. Siddig - Daoud Research Group, Neurology, Khartoum, Sudan
O. El-adil - Daoud Research Group, Neurology, Khartoum, Sudan
E.M. Mahmoud - Daoud Research Group, Neurology, Khartoum, Sudan
M.A. Ahmed - Daoud Research Group, Neurology, Khartoum, Sudan
H. Abbashar - Daoud Research Group, Neurology, Khartoum, Sudan
M.M. Aldar - Daoud Research Group, Neurology, Khartoum, Sudan
M. Abbashar - Daoud Research Group, Neurology, Khartoum, Sudan
K. Mohamed Ahmed Abbasher - Daoud Research Group, Neurology, Khartoum, Sudan