Danylenko H, Cherniakova G, Merkulova T, Avdiievska O. The impact of summer holidays on the physical development of school-age children. Med. perspekt. [Internet]. 2021Jun.18 [cited 2024Sep.1];26(2):147-52. Available from: https://journals.uran.ua/index.php/2307-0404/article/view/234661