Visual feedback training using Wii Fit improves balance in Parkinson’s disease - Zalecki, Tomasz; Surówka, Artur D.; Gorecka-Mazur, Agnieszka; Pietraszko, Wojciech; Novak, Pawel; Moskala, Marek; Krygowska-Wajs, Anna (Folia Medica Cracoviensia, 2013)