Lazarus, G., Faculty of Medicine, Universitas Indonesia, Jl. Salemba Raya No. 6, RW 5, Kenari, Kec. Senen, Kota Jakarta Pusat, Jakarta 10430, Indonesia; Budiman, R.A., Faculty of Medicine, Universitas Indonesia, Jl. Salemba Raya No. 6, RW 5, Kenari, Kec. Senen, Kota Jakarta Pusat, Jakarta 10430, Indonesia; Rinaldi, I., Division of Hematology and Medical Oncology, Department of Internal Medicine, Faculty of Medicine, Universitas Indonesia - Cipto Mangunkusumo Hospital, Jakarta, Indonesia