1. Geoinformation and Big Data Research Lab, Department of Geography, University of South Carolina, Columbia, SC, USA
2. Big Data Health Science Center, University of South Carolina, Columbia, SC, USA
3. Department of Health Promotion, Education, and Behavior, University of South Carolina, Columbia, SC, USA
4. Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
5. Department of Health Services Policy and Management, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA