عبدالله نسب, فيصل رضوان, and علي يوسف. “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, no. 4 (November 13, 2024): 503–521. Accessed November 24, 2024. https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/17959.