Can Gait Features Help in Differentiating Parkinson's Disease Medication States and Severity Levels? A Machine Learning Approach. - Chariklia Chatzaki; Vasileios Skaramagkas; Zinovia Kefalopoulou; Nikolaos S. Tachos; Nicholas Kostikis; Foivos Kanellos; Eleftherios Triantafyllou; Elisabeth Chroni; Dimitrios I. Fotiadis; Manolis Tsiknakis (Sensors, 2022)