For citations:
Nodel MR, Shevtsova KV, Kovrov GV, Yakhno NN. Nighttime sleep disorders in patients with daytime sleepiness in Parkinson s disease. Nevrologiya, neiropsikhiatriya, psikhosomatika = Neurology, Neuropsychiatry, Psychosomatics. 2018;10(4):23-29. (In Russ.) https://doi.org/10.14412/2074-2711-2018-4-23-29