Naji ZAW. Assessment of Serum Vitamin D3 and Vitamin B12 Levels in Iraqi Women with Osteoporosis A Cross-Sectional Study. AJBCI [Internet]. 2025 Aug. 2 [cited 2026 Jun. 4];2(7):40-7. Available from: https://biojournals.us/index.php/AJBCI/article/view/1203