title: Catheter tip localization during umbilical venous exchange transfusion and necrotizing enterocolitis.
mesh_terms: D002404:Catheterization / Q000009:adverse effects*; D004761:Enterocolitis, Pseudomembranous / Q000209:etiology*; D005078:Exchange Transfusion, Whole Blood / Q000009:adverse effects*; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000209:etiology*; D008297:Male; D014471:Umbilical Veins; D014682:Vena Cava, Inferior