Impact of the COVID-19 pandemic on vitamin D levels in different age groups. Research, Society and Development, [S. l.], v. 11, n. 10, p. e180111032604, 2022. DOI: 10.33448/rsd-v11i10.32604. Disponível em: https://rsdjournal.org/rsd/article/view/32604. Acesso em: 6 dec. 2025.