Siddammanahalli, J., Kariyappa, M., Ramaswamy, P., NH, S. and Kusuma, G. (2016) “Correlation of myocardial performance index and serum ferritin levels in children with beta thalassemia major”, International Journal of Contemporary Pediatrics, 3(1), pp. 22–27. doi: 10.18203/2349-3291.ijcp20151386.