For citations:

Kovrov GV, Agaltsov MV, Sukmarova ZN. Effectiveness of prolonged-release melatonin in Improving Quality of Sleep in Patients Aged 55 or Over. Nevrologiya, neiropsikhiatriya, psikhosomatika = Neurology, Neuropsychiatry, Psychosomatics. 2016;8(2):24-30. (In Russ.) https://doi.org/10.14412/2074-2711-2016-2-24-30