Long-term incobotulinumtoxinA treatment for chronic sialorrhea: Eﬃcacy and safety over 64 weeks - Jost, W H; Friedman, A; Michel, O; Oehlwein, C; Slawek, J; Bogucki, A; Ochudlo, S; Banach, M; Pagan, F; Flatau-Baqué, B; Dorsch, U; Csikós, J; Blitzer, A (Parkinsonism Rel Disord, 2020)