The positive rate of CD 137 L was a little high than CD 80 but not distinctly, P >0 05.2)In same patient,either CD 80 or CD 137 L expressed but not together with another.

• CD137L表达稍高于CD80 ,但差异无显著意义 ,P >0 0 5 ; 2 )同一病例CD80 和CD137L的表达不尽相同 ,即同一白血病标本中不存在二者同时表达阳性。