Said, M., S. Sastroasmoro, D. Gatot, B. Supriyatno, and Y. Ananta. “Comparison of Pulmonary Functions of Thalassemic and of Healthy Children”. Paediatrica Indonesiana, Vol. 45, no. 1, Oct. 2016, pp. 1-6, doi:10.14238/pi45.1.2005.1-6.