Analisis efektivitas, keamanan dan biaya rejimen kombinasi kelasi besi dengan monoterapi pada pasien thalassemia mayor anak di RSUPN Cipto Mangunkusumo Periode 2014-2018 = Effectiveness, safety and cost analysis of combination iron chelation with mono-therapy in pediatric thalassemia major in Cipto Mangunkusumo Hospital Period 2014-2018.