Graft rejection may be caused by ________.
A. using a xenograft
B. use of immunosuppressive drugs
C. treatment with antilymphocyte serum
D. total body irradiation
Answer:A
Graft rejection may be caused by ________.
A. using a xenograft B. use of immunosuppressive drugs C. treatment with antilymphocyte serum D. total body irradiation