[1] Jining Med Univ, Dept Hematol, Affiliated Hosp, Jining 272029, Shandong, Peoples R China
[2] Jining Med Univ, Inst Blood & Marrow Transplantat, Jining, Shandong, Peoples R China
[3] Fujian Med Univ, Sch Clin Med 1, Fuzhou, Fujian, Peoples R China
[4] Jining Med Univ, Affiliated Hosp, Dept Pediat Hematol, Jining 272029, Shandong, Peoples R China