Use the following fields to submit electronic files, including a cover
letter, the manuscript text, figures, tables, and supplementary material.
You must submit all manuscript materials in their original formats (PDF
and PowerPoint files will not be accepted). If your files are large please
compress them (do not submit low-resolution versions). We also recommend
you label the files with a consistent naming convention that is appropriate
for the contents. Use one box for each file. Click Browse to find a file
on your hard drive.