Dewanti, C. N. ., I. K. A. . Utamayasa, and I. . Ugrasena. “The Correlation Between Serum Ferritin Levels and Impaired Heart Function in Children With Transfusion Dependent Thalassemia”. GSC Biological and Pharmaceutical Sciences, vol. 16, no. 2, Aug. 2021, pp. 190-5, doi:10.30574/gscbps.2021.16.2.0239.