Rajaa Mosa, Ismail, and Muhammad Ektifa Abdul Hamid. “A Study of Vitamin D Concentration and Some Physiological Variables Among Patients With Beta Thalassemia in Kirkuk City”. History of Medicine 9, no. 1 (February 28, 2023). Accessed September 27, 2024. http://13.200.237.241/HOM/index.php/medicine/article/view/842.