1 Department of Hematology, The First Hospital, Harbin Medical University, Harbin, People's Republic of China.
2 Department of Research, VA Boston Healthcare System, Harvard Medical School, Boston, Massachusetts, USA.
3 Department of Hematology, The First Hospital, Harbin Medical University, Harbin, People's Republic of China; Department of Research, VA Boston Healthcare System, Harvard Medical School, Boston, Massachusetts, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA. Electronic address: [email protected].