Author/Authors :
Mukhtar, M.M. University of Khartoum - Institute of Endemic Diseases, Sudan , Elamin, E.M. AlZaiem Alazhari University, Sudan , Bakhiet, S.M. University of Khartoum - Institute of Endemic Diseases, Sudan , Kheir, M.M. University of Khartoum - Faculty of Medicine, Sudan , Ali, A.B. Al Nilian University - Faculty of Medicine, Sudan