title: The rate of progression of Parkinson's disease.
authors.forename: G V
authors.initials: GV
authors.lastname: Sawle
mesh_terms: D000328:Adult; D000368:Aged; D016923:Cell Death; D004295:Dihydroxyphenylalanine / Q000031:analogs & derivatives; D006801:Humans; D008875:Middle Aged; D010300:Parkinson Disease / Q000000981:diagnostic imaging / Q000473:pathology*; D015203:Reproducibility of Results; D013378:Substantia Nigra / Q000000981:diagnostic imaging / Q000473:pathology; D014055:Tomography, Emission-Computed
chemical_list: C029112:5-fluorodopa; D004295:Dihydroxyphenylalanine