Publication info: Clin Radiol. 2007 Aug; 62(8):787-91.PMID: 17604769External link: http://www.ncbi.nlm.nih.gov/pubmed/17604769Publication date: August, 2007Authors: Evans A, Clements K, Maxwell A, Dobson H, Wallis M, Lawrence G, Bishop H, Sloane Project Steering GroupPublication type: Paper