【正】GENERAL INFORMATION World Journal of Radiology (World J Radiol,WJR,online ISSN 1949-8470,DOI:10.4329),is a monthly,open-access (OA),peerreviewed journal supported by an editorial board of 319 experts in Radiology from 40 countries.The biggest advantage of the OA model is that it provides free,full-text articles in PDF and other formats for experts and the