Nicholas A. Christakis, M.D., Ph.D., M.P.H.
Department of Health Care Policy
Harvard Medical School
180 Longwood Avenue
Boston, MA 02115

christakis.med.harvard.edu

James H. Fowler, PhD
Political Science Department
University of California, San Diego
Social Science Building 383
9500 Gilman Drive #0521
La Jolla, CA 92093-0521

jhfowler.ucsd.edu

Media Inquiries
Sabrina Callahan
Little Brown & Co.
(212) 364-1308