Ferdousi, M A Normal value of pulsatility index of umbilical artery in second and third trimester of pregnancy. [electronic resource] - Bangladesh Medical Research Council bulletin Apr 2013 - 42-4 p. digital Publication Type: Journal Article ISSN: 0377-9238 Standard No.: 10.3329/bmrcb.v39i1.15809 doi Subjects--Topical Terms: BangladeshBlood Flow VelocityCross-Sectional StudiesFemaleHumansPregnancyPregnancy Trimester, Second--physiologyPregnancy Trimester, Third--physiologyPulse Wave AnalysisReference ValuesUltrasonography, Doppler, ColorUltrasonography, PrenatalUmbilical Arteries--diagnostic imaging