http://orcid.org/0000-0001-5302-6771
About the Authors
- Carol A. Giffen
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Contributed equally to this work with: Carol A. Giffen, Elizabeth L. Wagner, John T. Adams
* E-mail: giffenc@imsweb.com
Affiliation Information Management Services, Inc., Calverton, Maryland, United States of America
- Elizabeth L. Wagner
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Contributed equally to this work with: Carol A. Giffen, Elizabeth L. Wagner, John T. Adams
Affiliation Translational Blood Science and Resources Branch, Division of Blood Diseases and Resources, National Heart, Lung, and Blood Institute, Bethesda, Maryland, United States of America
- John T. Adams
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Contributed equally to this work with: Carol A. Giffen, Elizabeth L. Wagner, John T. Adams
Affiliation Information Management Services, Inc., Calverton, Maryland, United States of America
- Denise M. Hitchcock
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Affiliation Information Management Services, Inc., Calverton, Maryland, United States of America
- Lisbeth A. Welniak
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Affiliation Translational Blood Science and Resources Branch, Division of Blood Diseases and Resources, National Heart, Lung, and Blood Institute, Bethesda, Maryland, United States of America
- Sean P. Brennan
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Affiliation Information Management Services, Inc., Calverton, Maryland, United States of America
- Leslie E. Carroll
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Affiliation Information Management Services, Inc., Calverton, Maryland, United States of America
Competing Interests
The commercial nature of our company does not alter our adherence to PLOS ONE policies on sharing data and materials. The company does not own the work we create under this contract.
Author Contributions
Conceptualization: CAG ELW. Data curation: JTA DMH SPB LEC. Formal analysis: JTA LEC. Investigation: CAG ELW JTA DMH LAW SPB LEC. Methodology: CAG ELW JTA LEC. Project administration: CAG ELW LEC. Resources: JTA LEC. Software: JTA SPB LEC. Supervision: CAG ELW LAW SPB LEC. Validation: JTA LEC. Visualization: CAG ELW JTA SPB LEC. Writing – original draft: CAG ELW LEC. Writing – review & editing: CAG ELW JTA DMH LAW SPB LEC.