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Additional Information

Competing Interests

Eric W Manheimer, Martin Mayer, and Brian S Alper declare they have no conflicts of interest. They are employed by EBSCO Health.

Author Contributions

Eric W Manheimer analyzed the data, authored or reviewed drafts of the paper, approved the final draft.

Martin Mayer analyzed the data, authored or reviewed drafts of the paper, approved the final draft.

Brian S Alper analyzed the data, authored or reviewed drafts of the paper, approved the final draft.

Data Deposition

The following information was supplied regarding data availability:

Not applicable

Funding

The authors received no funding for this work.


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