[Unexpected occurrences in radiologic control of catheters introduced into the umbilical vein: preliminary report].
D002404:Catheterization; D005078:Exchange Transfusion, Whole Blood; D006801:Humans; D007231:Infant, Newborn; D008722:Methods; D011169:Portal Vein / Q000000981:diagnostic imaging*; D011859:Radiography; D014471:Umbilical Veins / Q000000981:diagnostic imaging*; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging