1.
Szewko-Szwaykowska I, Jelisiejew T. Thorax development in children from the nursery-schools in Bialystok. AR [Internet]. 1976 Jan. 1 [cited 2025 Dec. 26];42(1):63-70. Available from: https://www.czasopisma.uni.lodz.pl/ar/article/view/20404