1. DICEAM, University Mediterranea of Reggio Calabria Via Zehender, Loc. Feo di Vito, Reggio Calabria, 89122, Italy
2. ALS Clinical Research Center, BiND, University of Palermo, Palermo, Italy
3. Intensive Rehabilitation Unit, Villa delle Ginestre Hospital, Palermo, Italy
4. g.tec Medical Engineering GmbH, 4521, Schiedlberg, Austria