Tehran University of Medical Sciences Acta Medica Iranica 0044-6025 39 2 2001 06 15 99 102 Marssosi V Masoomi F 2015 09 28 ess the relationship between umbilical cord blood gases at birth and morphology of umbilical cord, in a prospective study of 200 consecutive term delivery, we investigated the relationship between umbilical cord morphology characteristics (umbilical crd length, number of vascular coil, coiling index) and color of amniotic fluid and umbilical vessel blood gases. Statistically significant linear correlation was found between umblicial venous PH and the umbilical cord length (r=0.39, 95% CI 0.25, 0.53, P https://acta.tums.ac.ir/index.php/acta/article/view/2413 https://acta.tums.ac.ir/index.php/acta/article/download/2413/2402