1. Department of Hematology and Rheumatology, Affiliated Central People's Hospital of Zhanjiang of Guangdong Medical University, Zhanjiang, Guangdong 524045, P.R. China
2. Department of Hematology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
3. Department of Hematology, Jiangmen Central Hospital Affiliated Jiangmen Hospital of Sun Yat‑Sen University, Jiangmen, Guangdong 529030, P.R. China
4. Department of Hematopoietic Stem Cell Transplantation, The 307th Hospital of The People's Liberation Army, Beijing 100071, P.R. China