Computer keyboard interaction as an indicator of early Parkinson's disease. - Luca Giancardo; Álvaro Sánchez-Ferro; Teresa Arroyo-Gallego; Ian Butterworth; Carlos S. Mendoza; Paloma Montero; Michele Matarazzo; José A. Obeso; Martha L. Gray; Raúl San José Estépar (CoRR, 2016)