About the Authors

Daniel I. Chasman

dchasman@research.bwh.harvard.edu

Affiliations Division of Preventive Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America, Harvard Medical School, Boston, Massachusetts, United States of America

Verneri Anttila

Affiliations Harvard Medical School, Boston, Massachusetts, United States of America, Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America, Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland

Julie E. Buring

Affiliations Division of Preventive Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America, Harvard Medical School, Boston, Massachusetts, United States of America

Paul M. Ridker

Affiliations Division of Preventive Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America, Harvard Medical School, Boston, Massachusetts, United States of America

Markus Schürks

Affiliation Department of Neurology, University Hospital Essen, Essen, Germany

Tobias Kurth

Affiliations Division of Preventive Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States of America, Harvard Medical School, Boston, Massachusetts, United States of America, Inserm Research Center for Epidemiology and Biostatistics (U897) - Team Neuroepidemiology, Bordeaux, France, University of Bordeaux, College of Health Sciences, Bordeaux, France

on behalf of the International Headache Genetics Consortium

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DIC. Performed the experiments: DIC VA. Analyzed the data: DIC VA. Contributed reagents/materials/analysis tools: JEB PMR MS TK. Wrote the paper: DIC MS TK. Cohort assembly and collection of clinical and genetic data: DIC JEB PMR MS TK.