عبدالله ن., فيصل رضوان and علي يوسف 2024. The relationship between serum levels of (1-25 dehydroxy colicalcifirole) vitamin D3 and Parathormone (PTH) and hip fractures in older people. Tishreen University Journal -Medical Sciences Series. 46, 4 (Nov. 2024), 503–521.