Isolated single umbilical artery (iSUA) is a congenital condition identified when one of the two normally paired umbilical arteries is absent, without any associated structural or chromosomal ...

IN 1955 Benirschke and Brown 1 reported extensively on the occurrence of congenital anomalies in association with the absence of one of the two umbilical arteries. This study, together with previous ...

PNAS is the world's most-cited multidisciplinary scientific serial. It publishes high-impact research reports, commentaries, perspectives, reviews, colloquium papers, and actions of the Academy. In ...

Umbilical vein has been substituted for artery in vascular transplantation, but it remains unclear whether the stress relaxation and creep between these vessels are consistent. A recent study reported ...