No.2 Department of Burns, The Fifth Hospital of Harbin, Harbin, Heilongjiang 150040, China; No. 8 Orthopaedic Ward, The Fifth Hospital of Harbin, Harbin, Heilongjiang 150040, China; Department of Hemato-Oncology, The First Affiliated Hospital Harbin, Harbin Medical University, Harbin, Heilongjiang 150001, China.