Copeptin response to clinical maximal exercise tests.

has been renamed “Update,” as some users expressed concern over the word “Duplicate.” With these changes in mind, we would like to emphasize that the ultimate purpose of the Déjà Vu database is to maintain the integrity of biomedical literature, a goal that can be achieved only by a thorough and accurate interpretation of the information contained within. We therefore extend to both the editors and reviewers of Clinical Chemistry an invitation to explore the Déjà Vu database and its accompanying text similarity tool, eTBLAST (http://etblast.org), to help identify future submissions of questionable manuscripts before they are published.