PLOS ONE (originally PLoS ONE) is a peer-reviewed open access scientific journal published by the Public Library of Science (PLOS) since 2006. The journal covers primary research from any discipline within science and medicine. Operating under a pay-to-publish model, PLOS ONE publishes approximately 70% of submitted manuscripts. All submissions go through a pre-publication review by a member of the board of academic editors, who can elect to seek an opinion from an external reviewer.