Measures of Oxidant Stress: Blood from the Cord and subsequent specimens from the infant at 1 hour, 1 week and 1 month will be obtained, 400 microlitres, 4/10th of an ml for a total of 1.2 ml from the infant, spun and frozen and run at our basic science laboratory for measurement of lipid peroxides, oxidized and reduced glutathione and total antioxidant status. Lipid peroxides will be measured using the K-ASSAY kit from the Kamiya Biomedical company. Total antioxidant status will be measured using the Randox Total Antioxidant status kit.