Cerebrospinal hypocretin, daytime sleepiness and sleep architecture in Parkinson's disease dementia

Y Compta, J Santamaria, L Ratti, E Tolosa, A Iranzo, E Munoz, F Valldeoriola, R Casamitjana, J Rios and M. J. Marti

Brain 132 ( 12 ): 3308 - 3317 , 2009