![Validation of the Italian non motor symptoms questionnaire and non motor symptoms scale for Parkinson's disease]()
Validation of the Italian non motor symptoms questionnaire and non motor symptoms scale for Parkinson's diseaseCova, Ilaria; Vanacore, Nicola; Contri, Patrizia; Meco, Giuseppe; Pomati, Simone; Grande, Giulia; Lacorte, Eleonora; Priori, Alberto; Mariani, Claudio · Parkinsonism & Related Disorders · 2016