Virginia T. Guidry, MPH, PhD
Virginia T. Guidry, MPH, PhD
![142nd APHA Annual Meeting and Exposition (November 15 - November 19, 2014): http://www.apha.org/events-and-meetings/annual](images/banner.jpg)
University of North Carolina at Chapel Hill
Chapel Hill,
NC
USA
virginia.guidry@unc.edu
3375.0 Assessing data quality in a community-based longitudinal study with middle-school adolescents