1. Medical Oncology and Hematology, Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea.
2. Department of Hematology and Oncology, Ulsan University Hospital, Ulsan University College of Medicine, Ulsan, Korea.
3. Hematology and Oncology, Department of Internal medicine, Gyeongsang National University College of Medicine, Jinju, Korea.
4. Oncology and Hematology, Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
5. Hematology and Oncology, Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea.