For citations:
Gamirova R.G., Gorobets E.A., Skhirtladze A.V., Prusakov V.F., Volgina S.Ya. Features of cognitive development in children of early and preschool age using gadgets. Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics). 2021;66(5):163-167. (In Russ.) https://doi.org/10.21508/1027-4065-2021-66-5-163-167