1. Risk of Local and Systemic Infection Associated with Umbilical Vein Catheterization: A Prospective Study in 86 Newborn Patients;Balagtas R. C.;Pediatrics,1971
2. Proper Localization of Umbilical Arterial and “Venous Catheters by Lateral Roentgenograms;Baker D. H.;Pediatrics,1969
3. Placental Barrier to Coagulation Factors: Its Relevance to the Coagulation Defect at Birth and to Haemorrhage in the Newborn
4. Advantages and Complications of Umbilical Catheterization in the Newborn;Cochran W. D.;Pediatrics,1968
5. Localization of the umbilical catheter by post-mortem measurement.