The first cyc le was a trial cycle (chemotherapy plus injection of Rui Xue Xin), and the seco nd cycle was a control cycle (chemotherapy alone) in AB group.

• AB组第一周期为治疗周期 (A周期 ) ,采用化疗加瑞血新 ,第二周期为对照周期 (B周期 ) ,单纯化疗不加瑞血新。