Advances in the treatment of cancer and improvements in supportive care over the past 10 years have improved the results and tolerability of blood and marrow transplants (BMT). 然而,BMT仍然是一个主要的程序. 同种异体移植, the patient receives bone marrow or blood stem cells from a tissue-matched (HLA-matched) donor who may or may not be a relative. 同卵双生异基因移植称为同基因移植.