About the Authors

Theodore Eugene Day

dayt@chop.edu

Current address: Office of Patient Safety and Quality, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America; Department of Emergency Medicine, Brown University, Providence, Rhode Island, United States of America

Affiliation Health Services Research and Development, VA St. Louis Healthcare System, St. Louis, Missouri, United States of America

Nathan Ravi

Affiliations Ophthalmologist, VA St. Louis Healthcare System, St. Louis, Missouri, United States of America, Department of Ophthalmology and Visual Sciences, Washington University in St. Louis, St. Louis, Missouri, United States of America, Department of Energy, Environment and Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri, United States of America

Hong Xian

Affiliations Health Services Research and Development, VA St. Louis Healthcare System, St. Louis, Missouri, United States of America, Department of Biostatistics, St. Louis University, St. Louis, Missouri, United States of America

Ann Brugh

Affiliation Primary Care Mental Health Integration, VA St. Louis Healthcare System, St. Louis, Missouri, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TED NR. Performed the experiments: TED. Analyzed the data: TED HX AB. Wrote the paper: TED NR HX AB.