A Systematic Review of the Current Policies and Implementation of Screening for Foetal Abnormalities; the Use of Ductus Venosus Flow in Screening for Down’s Syndrome

Edoghogho Tracy Lawal, Venessa Eseohe Oigbochie and Agbonluai Richard O. Ehimibgai

Journal of Engineering and Applied Sciences 12 ( 5 ): 1270 - 1287 , 2017