Putaminal dopamine modulates movement motivation in Parkinson's disease. - Banwinkler, Magdalena; Dzialas, Verena; Rigoux, Lionel; Asendorf, Adrian L; Theis, Hendrik; Giehl, Kathrin; Tittgemeyer, Marc; Hoenig, Merle C; Eimeren, Thilo van (Brain: A Journal of Neurology, 2024)