MIAH, Md Titu et al. Vitamin - D level and severity of COVID-19 among the Admitted Patients in a COVID Dedicated Tertiary Care Hospital - An Prospective Study. Journal of Bangladesh College of Physicians and Surgeons, [S. l.], v. 40, n. 3, p. 166–170, 2022. DOI: 10.3329/jbcps.v40i3.60302. Disponível em: https://www.banglajol.info/index.php/JBCPS/article/view/60302. Acesso em: 9 sep. 2025.