Heyl, W Pulsation of blood flow in the umbilical vein during the second trimester of pregnancy correlated to fetal malformation and chromosomal abberation. [electronic resource] - Journal of perinatal medicine 1998 - 278-83 p. digital Publication Type: Journal Article ISSN: 0300-5577 Standard No.: 10.1515/jpme.1998.26.4.278 doi Subjects--Topical Terms: AdolescentAdultChromosome AberrationsCongenital Abnormalities--physiopathologyFemaleFetal Diseases--physiopathologyFetal Growth Retardation--physiopathologyGestational AgeHumansHypertension--physiopathologyPregnancyPregnancy Complications, Cardiovascular--physiopathologyPregnancy Trimester, SecondPulsatile FlowUmbilical Veins