Taher, M. A.; Tasmin, N.; Mohiuddin, A.; Ul Alam, M. M.; Sharif, M. M.; Ghos, K. Doppler Flow Velocity Indices (RI, PI, S/D & PSV) of Fetal Middle Cerebral Artery in Normal Pregnancies: Correlation With Gestational Age of 20 to 40 Weeks. Birdem Med J 2012, 2, 77-80.