1. United Nations, Department of Economic and Social Affairs, Population Division (2019). World Population Prospects 2019: Highlights. Accessed May 25, 2021. https://www.un.org/development/desa/publications/world-population-prospects-2019-highlights.html
2. Lazebnik LB, Vertkin AL, Konev YuV, Li ED, Skotnikov AS. Starenie. Professional’nyj vrachebnyj podkhod. M.: Eksmo; 2014. (In Russ.)
3. Byulleten’ «Chislennost’ naseleniya Rossijskoj Federatsii po polu i vozrastu na 1 yanvarya 2020 goda». Federal’naya sluzhba gosudarstvennoj statistiki. [Elektronnyj resurs]. Accessed May 25, 2021. (In Russ.). https://rosstat.gov.ru/bgd/regl/b20_111/Main.htm
4. Boykova NE. Modern approaches to the correction of diseases of the nasal mucosa in the elderly. Russkij meditsinskij zhurnal. 2014;25:1858-1862. (In Russ.)
5. Khaziakhmetova VN, Abakumova TR, Aleksandrova EG, Titarenko AF, Bogdanova OG, Rakhmatullina AA. Kriterii Birsa dlya obespecheniya ratsional’nogo ispol’zovaniya lekarstv u pozhilykh: uchebnoe posobie. Maksimov ML, ed. Kazan: Izdatel’stvo Kazanskogo universiteta; 2020. (In Russ.)