Somers John M, Halliday Katharine E
Radiology Department, Nottingham University Hospitals B floor, West Block, Queen's Medical Centre Derby Road Lenton, Nottingham, NG7 2UH, UK,
Pediatr Radiol. 2014 Oct;44(10):1333. doi: 10.1007/s00247-014-3073-2. Epub 2014 Aug 30.