Measuring Diurnal Cortisol Change in a Population-Based Field Study: Don’t Try This at Home (Alone) • Carolyn Tucker Halpern, University of North Carolina at Chapel Hill ; Eric A. Whitsel, University of North Carolina at Chapel Hill ; Brandon Wagner, University of North Carolina at Chapel Hill

The Feasibility of Collecting Physical Measures and Biomarkers in Cross-National Studies • Mary Beth Ofstedal, University of Michigan ; Heidi Guyer, University of Michigan ; Carli Lessof, National Centre for Social Research ; Kate Cox, National Centre for Social Research

Biological Indicators in a Nationally Representative Sample of Young Adults: How Do Add Health Wave IV Biomarkers Measure Up? • Laura Chyu, Northwestern University ; Thomas W. McDade, Northwestern University ; Emma Adam, Northwestern University

Field Study of Gallbladder Diseases in Rural Gangetic Basin of North India, Impact of Environmental and Life Style Risk Factors • Sayeed Unisa, International Institute for Population Sciences (IIPS) ; Tarun K. Roy, International Institute for Population Sciences (IIPS)