1. Division of Hematology‐Oncology Department of Internal Medicine Kaohsiung Chang Gung Memorial Hospital and Chang Gung University Taoyuan 333 Taiwan
2. Division of Hematology‐Oncology Department of Internal Medicine Keelung Chang Gung Memorial Hospital and Chang Gung University Taoyuan 333 Taiwan
3. Division of Hematology‐Oncology Department of Internal Medicine Linkou Chang Gung Memorial Hospital and Chang Gung University Taoyuan 333 Taiwan
4. Division of Hematology‐Oncology Department of Internal Medicine Chiayi Chang Gung Memorial Hospital and Chang Gung University Taoyuan 333 Taiwan
5. Department of Hematology/Oncology Shuang Ho Hospital, Zhonghe District New Taipei City 235 Taiwan
6. Department of Chest Medicine Changhua Christian Hospital Changhua 500 Taiwan