Sildenafil (Viagra) for the Treatment of Dyskinesias in Parkinson's Disease
A Double-Blind, Placebo-Controlled, Cross-Over Study of Sildenafil (Viagra) for the Treatment of Dyskinesias in Parkinson's Disease A Double-Blind, Placebo-Controlled, Cross-Over Study of Sildenafil(Viagra) for the Treatment of Dysk ...