title: Improvement of voicing in patients with Parkinson's disease by speech therapy.
authors: Mario
authors: M
authors: Liotti
authors: Lorraine
authors: L
authors: Ramig
mesh_terms: D006801:Humans; D010300:Parkinson Disease / Q000150:complications*; D013070:Speech Therapy / Q000379:methods*; D016896:Treatment Outcome; D014832:Voice Disorders / Q000209:etiology* / Q000534:rehabilitation*