About the Authors

Jingchun Chen

Contributed equally to this work with: Jingchun Chen, Darlene H. Brunzell

Affiliation Department of Psychiatry and Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America

Darlene H. Brunzell

Contributed equally to this work with: Jingchun Chen, Darlene H. Brunzell

Affiliations Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, Virginia, United States of America, Institute for Drug and Alcohol Studies, Virginia Commonwealth University, Richmond, Virginia, United States of America, Interdisciplinary Neuroscience Program, Virginia Commonwealth University, Richmond, Virginia, United States of America

Kia Jackson

Affiliation Department of Psychiatry and Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America

Andrew van der Vaart

Affiliation Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia, United States of America

Jennie Z. Ma

Affiliation Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia, United States of America

Thomas J. Payne

Affiliation Department of Otolaryngology and Communicative Sciences, University of Mississippi Medical Center, Jackson, Mississippi, United States of America

Richard Sherva

Affiliation Department of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, Massachusetts, United States of America

Lindsay A. Farrer

Affiliation Department of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, Massachusetts, United States of America

Pablo Gejman

Affiliation Center for Psychiatric Genetics, NorthShore University HealthSystem Research Institute, Evanston, Illinois, United States of America

Douglas F. Levinson

Affiliation Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California, United States of America

Peter Holmans

Affiliation Biostatistics and Bioinformatics Unit, Medical Resource Council Centre for Neuropsychiatric Genetics and Genomics, Department of Psychological Medicine and Neurology, Cardiff University School of Medicine, Heath Park, Cardiff, United Kingdom

Steven H. Aggen

Affiliation Department of Psychiatry and Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America

Imad Damaj

Affiliation Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, Virginia, United States of America

Po-Hsiu Kuo

Affiliation Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan

Bradley T. Webb

Affiliation Department of Psychiatry and Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America

Raymond Anton

Affiliation Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, South Carolina, United States of America

Henry R. Kranzler

Affiliation Department of Psychiatry, Treatment Research Center, University of Pennsylvania School of Medicine 3900 and Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania, United States of America

Joel Gelernter

Affiliation Departments of Psychiatry, Genetics, and Neurobiology, Yale University School of Medicine, New Haven, Connecticut, and Veterans Affairs Connecticut Healthcare Center, West Haven, Connecticut, United States of America

Ming D. Li

Affiliation Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia, United States of America

Kenneth S. Kendler

Affiliations Department of Psychiatry and Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America, Institute for Drug and Alcohol Studies, Virginia Commonwealth University, Richmond, Virginia, United States of America, Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America

Xiangning Chen

xchen@vcu.edu

Affiliations Department of Psychiatry and Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America, Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JC DHB XC. Performed the experiments: JC KJ AvdV. Analyzed the data: JC DHB JZM TJP RS LAF PG DFL PH SA P-HK BTW RA HRK JG MDL XC. Contributed reagents/materials/analysis tools: DHB ID XC. Wrote the paper: JC DB XC. Revision of the manuscript: KSK.