@article{{MRA}{}, author = {Barbalho, s., Sloan, K., Sloan, L., Goulart, R., Quesada, K., Laurindo, L., Zutin, T., Bechara, M.}, title = { Effects of Vitamin D in the Prophylaxis and Treatment of COVID-19: A Systematic Review}, journal = {Medical Research Archives}, volume = {10}, number = {6}, year = {2022}, doi = {10.18103/mra.v10i6.2906}, url = {https://esmed.org/MRA/mra/article/view/2906} }