Vitamin D deficiency and its associated factors in active TB patients at a tertiary hospital and three primary health care level facilities in Lusaka, Zambia: A cross sectional analytical study. Medical Journal of Zambia, [S. l.], v. 50, n. 2, p. 132–141, 2024. DOI: 10.55320/mjz.50.2.347. Disponível em: https://mjz.co.zm/index.php/mjz/article/view/347.. Acesso em: 28 oct. 2024.