PEG-J replacement for duodenal levodopa infusion in Parkinson's disease patients: a retrospective study. - Simoni, Simone; Nigro, Pasquale; Filidei, Marta; Cappelletti, Giulia; Paolini Paoletti, Federico; Castellani, Danilo; Gaggiotti, Mirko; Parnetti, Lucilla; Tambasco, Nicola (BMC Neurology, 2022)