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Seppi, Klaus, K. Ray Chaudhuri, Miguel Coelho, Susan H. Fox, Regina Katzenschlager, Santiago Perez Lloret, Daniel Weintraub, i Cristina Sampaio. "Update On Treatments for Nonmotor Symptoms of Parkinson's Disease—an Evidence‐based Medicine Review." Mov Disord 2019.

Seppi, Klaus, et al. "Update On Treatments for Nonmotor Symptoms of Parkinson's Disease—an Evidence‐based Medicine Review." Mov Disord 2019.