Nonmotor Symptoms of Parkinson’s Disease

1Department of Neurology, Changhua Christian Hospital, Changhua, Taiwan 2Department of Neurology, RHON Kliniken, Lehrkrankenhaus Philipps Universität, Marburg, Germany 3Department of Anatomy and Neuroscience, School of Medicine, University of Osijek, Osijek, Croatia 4Neurocognitive Behavior Center, Seoul National University Bundang Hospital, Seongnam, Republic of Korea 5Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence and IRCCS Don Gnocchi Firenze, Florence, Italy 6Department of Neurology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan 7Department of Master’s Program in Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan 8Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan