Pathological gambling in Parkinson’s disease improves on chronic subthalamic nucleus stimulation - Ardouin, C; Voon, V; Worbe, Y; Abouazar, N; Czernecki, V; Hosseini, H; Pelissolo, A; Moro, E; Lhommee, E; Lang, AE; Agid, Y; Benabid, AL; Pollak, P; Mallet, L; Krack, P (Mov Disord, 2006)