title: Excessive daytime sleepiness and its risk factors in incident Parkinson's disease.
authors.affiliation: Centre for Brain Repair, University of Cambridge, ED Adrian Building, Forvie Site, Robinson Way, Cambridge CB2 0PY, UK. dpbreen1@gmail.com
authors.forename: David P
authors.initials: DP
authors.lastname: Breen
authors.forename: Caroline H
authors.initials: CH
authors.lastname: Williams-Gray
authors.forename: Sarah L
authors.initials: SL
authors.lastname: Mason
authors.forename: Tom
authors.initials: T
authors.lastname: Foltynie
authors.forename: Roger A
authors.initials: RA
authors.lastname: Barker
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002394:Catechol O-Methyltransferase / Q000235:genetics; D006970:Disorders of Excessive Somnolence / Q000150:complications / Q000453:epidemiology* / Q000235:genetics; D005260:Female; D056726:Genetic Association Studies / Q000379:methods; D006801:Humans; D015994:Incidence; D008297:Male; D010300:Parkinson Disease / Q000150:complications / Q000453:epidemiology*; D020641:Polymorphism, Single Nucleotide; D015995:Prevalence; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data; D012307:Risk Factors; D006113:United Kingdom / Q000453:epidemiology
chemical_list: D002394:Catechol O-Methyltransferase