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 Medical Journal, [S. l.], v. 2, n. 2, p. 77–80, 2012. DOI: 10.3329/birdem.v2i2.12306. Disponível em: https://www.banglajol.info/index.php/BIRDEM/article/view/12306. Acesso em: 23 jun. 2026.