Bulas Dorothy, Goske Marilyn, Applegate Kimberly, Wood Beverly
Department of Diagnostic Imaging and Radiology, Children's National Medical Center, 111 Michigan Avenue NW, Washington, DC, 20010, USA.
Pediatr Radiol. 2009 Feb;39(2):112-6. doi: 10.1007/s00247-008-1101-9. Epub 2008 Dec 16.