For citations:

Novikova I.I., Zubtsovskaya N.A., Ivleva G.P. Analysis of Participation of Schoolchildren in Extracurricular Activities and the Health Aspect of their Routine: Results of a Sociological Survey. Public Health and Life Environment – PH&LE. 2022;(4):31-38. (In Russ.) https://doi.org/10.35627/2219-5238/2022-30-4-31-38