ŻYGA, Justyna. Oral collagen supplements intake on improving skin structure and function. Journal of Education, Health and Sport, [S. l.], v. 12, n. 7, p. 434–440, 2022. DOI: 10.12775/JEHS.2022.12.07.043. Disponível em: https://apcz.umk.pl/JEHS/article/view/39000. Acesso em: 27 dec. 2025.