Correction to: GP2015: An Etanercept Biosimilar

The article GP2015: An Etanercept Biosimilar, written by Emma D. Deeks, was originally published Online First without open access. After publication in volume 31, issue 6, pages 555–558 HEXAL AG requested that the article be Open Choice to make the article an open access publication. Post-publication open access was funded by HEXAL AG. The article is forthwith distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, duplication, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.