Alfrehat, Eman N., Essra M. Alnsour, Enas M. Al Hmeisat, and Firas Alsoleihat. “Prevalence and Correlation of Vitamin B12 and Vitamin D Levels Among Jordanian Patients”. ESI Preprints (European Scientific Journal, ESJ) 36 (December 23, 2024): 364. Accessed May 14, 2026. https://esipreprints.org/index.php/esipreprints/article/view/1873.