HOSSAIN, Enamul; MANDAL, Sanjay K; SARKAR, Souvik; JHA, Amrita; MONDAL, Ranjan. A Study on Serum Vitamin D3 Level in Patients with Covid-19: A Cross-Sectional Study in Kolkata. National Journal of Medical Research, [S. l.], v. 15, n. 02, p. 126–131, 2025. DOI: 10.55489/njmr.150220251070. Disponível em: https://njmr.in/index.php/file/article/view/1070. Acesso em: 4 apr. 2025.