Authorship

All contributors who have made a significant contribution should be given chance to be cited as authors. Other individuals who have contributed to the work should be acknowledged. Articles should include a full list of the current institutional affiliations of all authors, both academic and corporate.

Competing interests

All authors, referees and editors must declare any conflicting or competing interests relating to a given article. Competing interests through their potential influence on behaviour or content or perception may undermine the objectivity, integrity or perceived value of publication.

Sources of funding

Funding received for the work described in the paper or for the publication itself, for all authors, must be declared within the publication.