Randomized trial of cognitive speed of processing training in Parkinson disease. Neurology 2013;81:1284-90.
Edwards, JD, RA Hauser, ML O’Connor, EG Valdes, TA Zesiewicz, and EY Uc. 2013. “Randomized Trial of Cognitive Speed of Processing Training in Parkinson Disease. Neurology 2013;81:1284-90.”. Neurology.