title: Do on-off variations cause discrepancies in the historical items of the UPDRS?
authors.forename: Camille B
authors.initials: CB
authors.lastname: Carroll
authors.forename: Peter G
authors.initials: PG
authors.lastname: Bain
mesh_terms: D000203:Activities of Daily Living; D000978:Antiparkinson Agents / Q000009:adverse effects; D002188:Cannabis; D004409:Dyskinesia, Drug-Induced / Q000628:therapy; D006801:Humans; D007980:Levodopa / Q000009:adverse effects; D010300:Parkinson Disease / Q000175:diagnosis* / Q000188:drug therapy; D008517:Phytotherapy / Q000379:methods
chemical_list: D000978:Antiparkinson Agents; D007980:Levodopa