1. Umbilical vessel catheterization;Egan;Am. J. Dis. Child.,1971
2. Catheterization ofumbilical vessels in newborn infants;Kitterman;Pediatr. Clin. North Am.,1970
3. Advantages and complications of umbilical artery catheterization in the newborn;Cochran;Pediatrics,1968
4. Umbilical artery catheterization: Demonstration of arterial thrombosis by aortography;Neal;Pediatrics,1972