AUTHOR=Adlakha Deepti , Budd Elizabeth L. , Gernes Rebecca , Sequeira Sonia , Hipp James A. TITLE=Corrigendum: Use of Emerging Technologies to Assess Differences in Outdoor Physical Activity in St. Louis, Missouri JOURNAL=Frontiers in Public Health VOLUME=3 YEAR=2015 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2015.00041 DOI=10.3389/fpubh.2015.00041 ISSN=2296-2565