Vitamin D3 in acute respiratory infections in patients under age five in a health institution in Colombia. Journal of Medical Science, Poznań, Poland, v. 91, n. 3, 2022. DOI: 10.20883/medical.e679. Disponível em: https://jmsnew.ump.edu.pl/index.php/JMS/article/view/679. Acesso em: 4 jul. 2025.