GB Sciences, Inc. announced appointment of Dr. Zoltan Mari to its recently re-launched Scientific Advisory Board. Dr. Mari is a renowned expert of clinical research on Parkinson's disease and movement disorders, who is willing to offer his guidance on GB Sciences' Parkinson's disease therapy program. Before moving to Las Vegas in 2017, Dr. Mari had served as the Director of the Parkinson's and Movement Disorder Center at Johns Hopkins University and as the Director of the National Parkinson Foundation Center of Excellence, also at Johns Hopkins University.