ASPET now offers PDF-only submission for all of its journals: Drug Metabolism and Disposition, Journal of Pharmacology and Experimental Therapeutics, Molecular Pharmacology, and Pharmacological Reviews. This new feature provides authors with a simpler method of submitting new and revised manuscripts through our online submission system. All components (manuscript, tables, and figures) should now be compiled into one file and converted to PDF format before upload. Authors will not be required to submit source files unless a paper is accepted for publication.