1. Department of Health and Human Performance, Texas State University, San Marcos, TX, USA
2. Department of Health Science, The University of Alabama, Tuscaloosa, AL, USA
3. Department of Family and Community Medicine, The University of Alabama at Birmingham, Birmingham, AL, USA
4. Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, USA
5. Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR, USA