Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Correction to: British Journal of Cancer (2015) 113, 107–118; doi:10.1038/bjc.2015.179; published online 25 June 2015
Following the publication of this manuscript, the authors have made arrangements to change the licence from CC-BY-NC-SA to CC-BY 4.0. Therefore the terms under which this paper is published are now altered and further details can be found on the creative commons website http://creativecommons.org/licenses/by/4.0/
