About the Authors
- A. James O’Malley, Nicholas A. Christakis
- Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts, United States of America
- Samuel Arbesman
- Ewing Marion Kauffman Foundation, Kansas City, Missouri, United States of America
- Darby Miller Steiger
- Gallup Government, Cleveland, Ohio, United States of America
- James H. Fowler
- Departments of Medical Genetics and Political Science, University of California San Diego, La Jolla, California, United States of America
- Nicholas A. Christakis
- Department of Sociology, Harvard University, Cambridge, Massachusetts, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: SA NAC JF. Performed the experiments: DMS. Analyzed the data: AJO. Contributed reagents/materials/analysis tools: AJO SA. Wrote the paper: AJO SA NAC.