About the Authors

Hung-Teh Kao

Hung-Teh_Kao@brown.edu

Affiliation Department of Psychiatry and Human Behavior, Brown University, Providence, Rhode Island, United States of America

Stephen L. Buka

Affiliation Department of Community Health, Brown University, Providence, Rhode Island, United States of America

Karl T. Kelsey

Affiliation Department of Community Health, Brown University, Providence, Rhode Island, United States of America

David F. Gruber

Affiliations Department of Psychiatry and Human Behavior, Brown University, Providence, Rhode Island, United States of America, Department of Natural Sciences, Baruch College and The Graduate Center, City University of New York, New York, New York, United States of America

Barbara Porton

Affiliation Department of Psychiatry and Human Behavior, Brown University, Providence, Rhode Island, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HTK SLB KTK DFG BP. Performed the experiments: HTK BP. Analyzed the data: HTK BP. Contributed reagents/materials/analysis tools: HTK SLB KTK DFG BP. Wrote the paper: HTK SLB KTK DFG BP.