Longitudinal assessment of excessive daytime sleepiness in early Parkinson’s disease
Amy W Amara, Lama M Chahine, Chelsea Caspell-Garcia, Jeffrey D Long, Christopher Coffey, Birgit Högl, Aleksandar Videnovic, Alex Iranzo, Geert Mayer, Nancy Foldvary-Schaefer, Ron Postuma, Wolfgang Oertel, Shirley Lasch, Ken Marek, Tanya Simuni
Journal of Neurology, Neurosurgery & Psychiatry Aug 2017, 88 (8) 653-662; DOI: 10.1136/jnnp-2016-315023