About the Authors

John P. A. Ioannidis

jioannid@stanford.edu

Affiliation Departments of Medicine, Health Research and Policy, and Statistics, Stanford University, Stanford, California, United States of America

Kevin W. Boyack

Affiliation SciTech Strategies, Inc., Albuquerque, New Mexico, United States of America

Richard Klavans

Affiliation SciTech Strategies, Inc., Berwyn, Pennsylvania, United States of America

Competing Interests

Two of the authors (KWB and RK) are employed by a small company (SciTech Strategies Inc). Nevertheless, there is no conflict of interest in the authors' submission, nor does this alter adherence to PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: JPAI. Performed the experiments: KWB. Analyzed the data: JPAI KWB RK. Contributed reagents/materials/analysis tools: KWB RK. Wrote the paper: JPAI.