BioMed Central is an STM publisher of 257 peer-reviewed open access journals. The portfolio of journals spans all areas of biology, biomedicine and medicine...All original research articles published by BioMed Central are made freely accessible online immediately upon publication. BioMed Central levies an article-processing charge to cover the cost of the publication process. Authors publishing with BioMed Central retain the copyright to their work, licensing it under the Creative Commons Attribution License which allows articles to be re-used and re-distributed without restriction, as long as the original work is correctly cited. BioMed Central is owned by Springer Science+ Business Media, and also hosts the SpringerOpen platform.