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Departments of Anesthesiology and Critical Care Medicine, Childrens Hospital of Los Angeles, California
Address correspondence and reprint requests to Laura A. Hastings, MD, Departments of Anesthesiology and Critical Care Medicine, Childrens Hospital of Los Angeles, 4650 Sunset Blvd., Los Angeles, CA 90027. Address e-mail to Lhastings{at}chla.usc.edu
IMPLICATIONS: A premature infant undergoing ligation of a patent ductus arteriosus had arterial desaturation during surgical retraction, which was caused by a previously unrecognized vascular ring anomaly.
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