For citations:

Preobrazhenskaya IS. Sleep disorders and their significance in the development of cognitive impairments. Nevrologiya, neiropsikhiatriya, psikhosomatika = Neurology, Neuropsychiatry, Psychosomatics. 2013;5(4):49-53. (In Russ.) https://doi.org/10.14412/2074-2711-2013-2455