For citations:

Panasenko L.M., Nefedova Zh.V., Kartseva T.V., Fadeeva Kh.A., Oladele D.A., Leonova N.V. Analysis of risk factors for the formation of insufficiency and deficiency of vitamin D in children. Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics). 2023;68(1):91-96. (In Russ.) https://doi.org/10.21508/1027-4065-2023-68-1-91-96