About the Authors

Rita P. S. Middelberg

ritaM@qimr.edu.au

Affiliations Genetic Epidemiology, Queensland Institute of Medical Research, Brisbane, Australia, Department of Medicine, Prince Charles Hospital, Queensland, Australia

Andrew C. Heath

Affiliation Department of Psychiatry, Washington University School of Medicine and Midwest Alcoholism Research Center, St. Louis, Missouri, United States of America

Pamela A. F. Madden

Affiliation Department of Psychiatry, Washington University School of Medicine and Midwest Alcoholism Research Center, St. Louis, Missouri, United States of America

Grant W. Montgomery

Affiliation Molecular Epidemology, Queensland Institute of Medical Research, Brisbane, Australia

Nicholas G. Martin

Affiliation Genetic Epidemiology, Queensland Institute of Medical Research, Brisbane, Australia

John B. Whitfield

Affiliation Genetic Epidemiology, Queensland Institute of Medical Research, Brisbane, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RPSM JBW NGM. Performed the experiments: GWM JBW. Analyzed the data: RPSM. Contributed reagents/materials/analysis tools: ACH PAFM GWM. Wrote the paper: RPSM JBW.