This report benefitted from the contributions of numerous individuals and institutions. Firstly, I would like to acknowledge the authors of the documents included in this review, as this research would not have been possible without their well-conducted, and documented, program and research activities. I also would like to thank my colleague Martha Brady for her in-depth and substantive contributions to, and conceptualization of, the available evidence with particular regard to repeat use of emergency contraception. I would like to acknowledge the contributions of other colleagues at Population Council, including Saumya RamaRao, Ian Askew, and John Townsend, for their guidance offered during this review's development and finalization. I am also appreciative of support provided by Elizabeth Westley of Family Care International who has helped frame this work in the larger context and contributed research, perspective, and data for consideration. Finally, I gratefully acknowledge the support from the International Consortium for Emergency Contraception for this literature review and larger project, "Provider Beliefs, Attitudes and Practices Concerning Emergency Contraception." With concurrent activities at ICEC, FHI, Gynuity, and Population Council, this literature review intends to contribute to a global strategy for improving access to emergency contraception, and I am grateful for this opportunity to contribute to such a worthwhile aim.