Review of the therapeutic management of Parkinson’s disease. Report of a joint task force of the European Federation of Neurological Societies (EFNS) and the Movement Disorder Society-European Section (MDS-ES). Part II: late (complicated) Parkinson’s disease. Parkinson’s disease European Handbook of Neurological Management - Oertel, W H; Berardelli, A; Bloem, B (Blackwell Publishing Ltd, 2011)
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