title: Early versus late-onset Parkinson's disease: the role of the locus coeruleus.
authors: R
authors: R
authors: Sandyk
authors: R P
authors: RP
authors: Iacono
mesh_terms: D000375:Aging / Q000502:physiology; D006801:Humans; D008125:Locus Coeruleus / Q000503:physiopathology*; D010300:Parkinson Disease / Q000503:physiopathology*