【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 public without registration, which