Prevalence and Deficiency of Vitamin D, Vitamin B12, and Calcium, and the Effect of a Limited Preventive Intervention among Adults in Gharyan City and Surrounding Areas. Alqalam Journal of Science , [S. l.], p. 468–473, 2026. DOI: 10.69667/ajs.26410. Disponível em: https://alqalam.utripoli.edu.ly/index.php/AR/article/view/107.. Acesso em: 22 apr. 2026.