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 The Effect of Hormonal Contraceptive Use on Vitamin B12 Levels among Adult Females in Saudi Arabia.
<strong>Medical Research Archives</strong>, [S.l.], v. 13, n. 10, nov. 2025.
ISSN 2375-1924.
Available at: &lt;<a href="https://esmed.org/MRA/mra/article/view/7059" target="_new">https://esmed.org/MRA/mra/article/view/7059</a>&gt;. Date accessed: 06 dec. 2025.
doi: <a href="https://doi.org/10.18103/mra.v13i10.7059">https://doi.org/10.18103/mra.v13i10.7059</a>.