Methodologies to Improve Global Population Estimates in Urban and Rural Areas • Deborah Balk, Columbia University ; Francesca Pozzi, Columbia University ; Gregory Yetman, Columbia University ; Andy Nelson, University of Leeds ; Uwe Deichmann, World Bank Group

Spatial Variation of Juvenile Sex Ratios and Sex Selective Underreporting in Two Chinese Censuses • William Lavely, University of Washington ; Yong Cai, University of Washington

Hidden Diversity in an Urban/Rural Dichotomy: A Case Study for Dar es Salaam, Tanzania • Marcia C. De Castro, Princeton University

Measuring Urban Health Differentials: Conceptual and Analytical Challenges Illustrated from a Study of Accra, Ghana • Samuel Agyei-Mensah, University of Ghana ; Allan G. Hill, Harvard University ; John K. Anarfi, University of Ghana ; Rosemary Duda, Harvard Medical School