1. Department of Neurology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
2. Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
3. Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
4. Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
5. Jean and Paul Amos Parkinson’s Disease and Movement Disorder Program, Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA