複選題
27. Which of the following is a mechanism by which tumors can evade immune detection? (Select all that apply.)
(A) reduction in levels of HLA class I
(B) recruitment of regulatory T cells
(C) enhancement of inflammatory responses
(D) lowering of levels of FasL on the cell surface
(E) creating physical barriers to the immune system.
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統計: 尚無統計資料
統計: 尚無統計資料