Umbilical catheter retrieval in the premature infant.
D002404:Catheterization / Q000295:instrumentation*; D005547:Foreign Bodies / Q000628:therapy*; D006325:Heart Atria; D006801:Humans; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000628:therapy*; D008297:Male; D014471:Umbilical Veins