BARBALHO, sandra Maria et al.
 Effects of Vitamin D in the Prophylaxis and Treatment of COVID-19: A Systematic Review.
<strong>Medical Research Archives</strong>, [S.l.], v. 10, n. 6, june 2022.
ISSN 2375-1924.
Available at: &lt;<a href="https://esmed.org/MRA/mra/article/view/2906" target="_new">https://esmed.org/MRA/mra/article/view/2906</a>&gt;. Date accessed: 15 nov. 2024.
doi: <a href="https://doi.org/10.18103/mra.v10i6.2906">https://doi.org/10.18103/mra.v10i6.2906</a>.