References with multiple authors must list at least three of the authors. Footnotes and references to tables should be given immediately below the tabular presentation and be identified separately for each table. Manuscripts based on research supported by a grant or performed under a contract should state this information in an unnumbered footnote on the cover page. These proofs must be returned to the managing editor, with corrections, within three days of receipt. Errors will be corrected, but extensive revisions will not be made at this stage of production.
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