Harahap, Ade Hariza, Bidasari Lubis, and Herman Hariman. “Vitamin D, Calcium and Phosphor in Patients With β-Thalassemia Major”. INDONESIAN JOURNAL OF CLINICAL PATHOLOGY AND MEDICAL LABORATORY 26, no. 1 (November 22, 2019): 6–10. Accessed April 28, 2024. https://indonesianjournalofclinicalpathology.org/index.php/patologi/article/view/1384.