VITAMIN D DEFICIENCY AND UNEXPLAINED SUBFERTILITY: A PROSPECTIVE COHORT STUDY AT A TERTIARY HOSPITAL. Frontier in Medical and Health Research, [S. l.], v. 3, n. 3, p. 1171–1182, 2025. Disponível em: https://fmhr.org/index.php/fmhr/article/view/346.. Acesso em: 27 jun. 2025.