A non-expensive bidimensional assessment can detect subtle alterations in gait performance in people in the early stages of Parkinson’s disease - D'Alencar, Matheus; Santos, Gabriel Venas; Helene, André Frazão; Roque, Antonio Carlos; Miranda, José Garcia Vivas; Piemonte, Maria Elisa Pimentel (Frontiers in Neurology, 2023)