141st APHA Annual Meeting and Exposition

Home Events & Meetings Annual Meeting Schedule & Program

Recorded Annual Meeting Presentations (RAMP) are now available for purchase.
Only $90 for presenters, $140 for registered attendees and $200 for non-attendees.

Online Program

Douglas J. Wiebe, PhD

Associate Professor of Epidemiology
University of Pennsylvania
Philadelphia, PA
USA dwiebe@exchange.upenn.edu

4080.0 Tracking teens with GPS-enabled cell phones to study contextual exposures and adolescent alcohol and risk behavior