Dear Publisher:
Thank you for your attention to the enclosed submission. This article is based on research that was
funded in whole or in part by grants from the Canadian Institutes of Health Research (CIHR) and is
therefore subject to the CIHR policy on Access to Research Outputs (see
http://www.cihr.ca/e/32005.html). According to this policy, all research papers generated from CIHR
funded projects must be made freely accessible through the Publisher’s website or an online repository
within six months of publication.
In order to ensure compliance with this mandate, and to be sure that copyrights are addressed
appropriately, we ask that the enclosed Addendum to the Copyright Agreement be signed and returned.
This addendum retains the right to archive the final, peer-reviewed version of the manuscript in a digital
repository and to make the manuscript freely available from that repository 6 months after the date of
publication in the Journal.
Thank you for your consideration and cooperation.
Sincerely,