Four Days Are Enough to Provide a Reliable Daily Step Count in Mild to Moderate Parkinson's Disease through a Commercial Smartwatch. - Edoardo Bianchini; Silvia Galli; Marika Alborghetti; Lanfranco De Carolis; Alessandro Zampogna; Clint Hansen; Nicolas Vuillerme; Antonio Suppa; Francesco E. Pontieri (Sensors, 2023)