New manuscripts should be submitted as a single PDF file (text, tables, and figures all in one file) with a separate PDF file for the cover letter to: [email protected]. The cover letter should include up to five suggested reviewers and their contact information. The subject of the email should be the lead author's name, e.g., “Simpson.” If the corresponding author differs from the lead author, follow the first name with the corresponding author's name in parentheses, e.g., “Simpson (Magruder).” In all correspondence beyond the initial submission, please put your assigned ms number on the subject line of your email.