Supplementary content includes supporting material that is not essential to understanding the conclusions of the research but contains information that is additional or complementary and directly relevant. This material is considered to form an integral part of the text and is subject to peer review and to the same ethical standards, warranties, and conditions of submission. The inclusion of supplementary content is at the discretion of the Editor-in-Chief, whose decision on its relevance and appropriateness, guided where necessary by reviewers' comments, is final.
All material to be considered as supplementary content must be clearly indicated as such and should be uploaded at the same time as the initial submission. It must be referred to in the manuscript at an appropriate point in the text.
Supplementary materials are published as open access files and are hyperlinked from the published article. See the links below for information on preparing supplementary content.
Appendices, Catalogues, Large Data Sets
These are published as PDF files and should be uploaded as individual MS Word files following initital submission instructions. Each file should be named “Online Appendix 1,” “Online Appendix 2,” etc., regardless of format, and referred to as such at the appropriate place in the manuscript text.
Audio and Video Files
Most audio and video formats are accepted. Use compressed formats where this can be done without compromising quality. Contact firstname.lastname@example.org with any questions.