Marcia C. Inhorn is Associate Professor in the Department of Health Behavior and Health Education, School of Public Health, International Institute, and the Department of Anthropology at the University of Michigan, Ann Arbor. Her books include Quest for Conception: Gender, Infertility, and Egyptian Medical Traditions (1994) and Infertility and Patriarchy: The Cultural Politics of Gender and Family Life in Egypt (1996). She is coeditor of The Anthropology of Infectious Disease: International Health Perspectives (1997). Frank van Balen is Associate Professor of Education and in the Faculty of Social and Behavioral Sciences at the University of Amsterdam. He is the author of three books in Dutch on childlessness, infertility, and new reproductive technologies, as well as a large number of articles on these subjects in international journals.