Brown Stephen D, Lyerly Anne D, Little Margaret O, Lantos John D
Department of Radiology, Children's Hospital Boston and Harvard Medical School, Boston, MA 02115, USA.
Acta Paediatr. 2008 Dec;97(12):1617-9. doi: 10.1111/j.1651-2227.2008.01070.x. Epub 2008 Oct 13.