Uji Diagnostik Interleukin-6, Prokalsitonin, dan C-Reactive Protein Sebagai Penanda Awal Bakteremia pada Pasien Leukemia Akut Dewasa yang Mengalami Neutropenia Berat Selama Menjalani Kemoterapi Standar di Rumah Sakit Tersier di Jakarta = Interleukin-6, Procalcitonin and C-Reactive Protein as Early Markers of Bacteremia in Adult Acute Leukemia Patients With Severe Neutropenia During Standard Chemotherapy at a Tertiary Hospital in Jakarta