1. Department of Electrical Engineering and Computer Science, University of Arkansas, Fayetteville, AR 72701, USA
2. School of Applied Computational Sciences, Meharry Medical College, Nashville, TN 37203, USA
3. Department of Computer Science, Missouri University of Science and Technology, Rolla, MO 65409, USA
4. Center for Health Policy, Department of Public Health Practice, Meharry Medical College, Nashville, TN 37208, USA
5. APSU GIS Center, Austin Peay State University, Clarksville, TN 37040, USA