Plasma Levels of Vitamin D and C-Reactive Protein in Adult Nigerians with Covid-19. African Journal of Biomedical Research, [S. l.], v. 27, n. 2, p. 305–308, 2024. DOI: 10.4314/ajbr.v27i2.14. Disponível em: https://ojshostng.com/index.php/ajbr/article/view/1939. Acesso em: 15 jul. 2025.