1. Department of Aging and Geriatric Research, College of Medicine, The University of Florida, Gainesville, Florida, 32611, USA
2. Division of Cancer Prevention and Population Sciences, Cancer Prevention Research Training Program, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77230, USA
3. Department of Educational Psychology and Leadership, Texas Tech University, Lubbock, Texas, 77030, USA
4. North River Geographic Systems, Inc., Chattanooga, TN, 37411, USA
5. Department of Biobehavioral Nursing Science, College of Nursing, University of Florida, Gainesville, Florida, 32610, USA