Legal Statements

Each author certifies that "I have participated sufficiently in the conception and design of this work and the analysis of the data (when applicable), as well as the writing of the manuscript, to take public responsibility for it. I believe the manuscript represents valid work. I have reviewed the final version of the manuscript and approve it for publication. Neither this manuscript nor one with substantially similar content under my authorship has been published or is being considered for publication elsewhere except as described in an attachment [none]. Furthermore, I attest that I shall produce the data on which the manuscript is based for examination by the editors or their assignees should they request it."

Each author certifies that "any affiliations with or financial involvement in any organization or entity with a direct financial interest in the subject matter or materials discussed in the manuscript (e.g., employment, consultancies, stock ownership, honoraria, expert testimony) are disclosed below. Any financial project support of this research is identified in an acknowledgment in the manuscript."

"In consideration of the American Medical Association’s (AMA) in reviewing and editing this submission, the author(s) undersigned hereby transfer, or otherwise convey all copyright ownership to the AMA in the event that such work is published by the AMA."

"All persons who have made substantial contributions to the work reported in the manuscript (including writing and editing assistance), but are not authors, are named in the Acknowledgment."