title: Progression of Parkinson's disease.
authors: J M
authors: JM
authors: Pearce
mesh_terms: D006801:Humans; D009498:Neurotoxins / Q000037:antagonists & inhibitors*; D010300:Parkinson Disease / Q000188:drug therapy* / Q000517:prevention & control; D011379:Prognosis; D012642:Selegiline / Q000627:therapeutic use*; D013997:Time Factors
chemical_list: D009498:Neurotoxins; D012642:Selegiline