Extent of pre-operative L-DOPA-induced dyskinesia predicts the severity of graft-induced dyskinesia after fetal dopamine cell transplantation

► Pre-graft L-DOPA-induced dyskinesia predicts severity of graft-induced dyskinesia. ► Dopamine grafts effectively reduce L-DOPA-induced dyskinesia. ► Dopamine grafts prevent induction of L-DOPA-induced dyskinesia.