BATKUNDE, Y. A. .; ILYAS, M. .; DJAHARUDDIN, I. .; TABRI, N. A. .; ISKANDAR, H. .; SANTOSO, A. . Analysis of Vitamin D Levels on Bronchiectasis Severity. Respiratory Science, [S. l.], v. 1, n. 2, p. 88-97, 2021. DOI: 10.36497/respirsci.v1i2.11. Disponível em: https://respiratoryscience.or.id/index.php/journal/article/view/11. Acesso em: 30 may. 2026.