【正】GENERAL INFORMATION World Journal of Stem Cells (World J Stem Cells, WJSC, online ISSN 1948-0210, DOI: 10.4252), is a monthly, open-access (OA), peer-reviewed journal supported by an editorial board of 284 experts in stem cell from 28 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 eliminates the obstacle that traditional