AUTHOR AFFILIATIONS

James Trussell is director, Office of Population Research, Princeton University, Princeton, NJ, and visiting professor, The Hull York Medical School, University of Hull, Hull, United Kingdom. Eleanor Bimla Schwarz is assistant professor, Division of General Internal Medicine, University of Pittsburgh School of Medicine, and assistant investigator, Magee-Womens Research Institute, Pittsburgh. Katherine Guthrie is clinical director, Sexual and Reproductive Healthcare Partnership, Hull and East Yorkshire, Hull, United Kingdom.