A multicenter epidemiological and clinical study on deep brain stimulation (DBS) for Parkinson's disease: The pilot study*. (January 2016) - Scelzo, Emma; Beghi, Ettore; Rosa, Manuela; Bianchi, Elisa; Pacchetti, Claudio; Antonini, Angelo; Romito, Luigi; Lopiano, Leonardo; Modugno, Nicola; Tamma, Filippo; Priori, Alberto