1. Subdivion of Hematology and Medical Oncology, Medical Faculty of Diponegoro University, Dr. Kariadi General Hospital, Semarang, Indonesia
2. Trainee in Hematology and Medical Oncology, Medical Faculty of Diponegoro University, Dr. Kariadi General Hospital, Semarang, Indonesia
3. Department of Internal Medicine, Parikesit Hospital, Mulawarman School of Medicine, Samarinda, East Kalimantan, Indonesia