About the Authors

Tamar Lasky


Affiliation MIE Resources, Kingston, Rhode Island, United States of America

Jay Greenspan

Affiliation Thomas Jefferson University, Nemours Children’s Clinics, Wilmington, Delaware, United States of America

Frank R. Ernst

Affiliation Clinical and Outcomes Research, Premier Research Services, Premier Healthcare Alliance, Charlotte, North Carolina, United States of America

Liliana Gonzalez

Affiliation Computer Science and Statistics, University of Rhode Island, Kingston, Rhode Island, United States of America

Competing Interests

The authors have the following interests. Frank Ernst is employed by Premier Research Services, the company that produced the database used in the analysis. Tamar Lasky is President and owner of MIE Resources. There are no further patents, products in development or marketed products to declare. This does not alter the authors’ adherence to all the PLoS ONE policies on sharing data and materials as detailed online in the guide for authors.

Author Contributions

Conceived and designed the experiments: TL JG FE LG. Performed the experiments: TL JG FE LG. Analyzed the data: TL LG. Wrote the paper: TL JG FE LG.