@article{{MRA}{}, author = {Simbolon, D.}, title = { The Role of Vitamin D in Prevention, Treatment, and Health Recovery of COVID-19 Patients (Literature Review)}, journal = {Medical Research Archives}, volume = {12}, number = {3}, year = {2024}, doi = {10.18103/mra.v12i3.5251}, url = {https://esmed.org/MRA/mra/article/view/5251} }