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Using GPS-enabled cell phones to track the travel patterns of adolescents

Sarah E Wiehe email, Aaron E Carroll email, Gilbert C Liu email, Kelly L Haberkorn email, Shawn C Hoch email, Jeffery S Wilson email and J Dennis Fortenberry email

International Journal of Health Geographics 2008, 7:22doi:10.1186/1476-072X-7-22

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