I (we) certify that all my (our) affiliations with or financial
involvement (e.g., employment, consultancies, honoraria, stock ownership
or options, expert testimony, grants or patents received or pending, royalties)
with any organization or entity with a
financial interest in or financial conflict with the subject matter
or materials discussed in the manuscript are completely
disclosed below or in an attachment. I (we) certify that all
financial and material support for this research and work are clearly identified
in the manuscript.
Signature of each author:
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