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.