Compare the early stage of PC(stage A to B) to C stage the difference is not appeared. When we compare C stage to D stage D PSA (under total PSA)is more obvious too.

• 同时 ,T- PSA和 F- PSA的 DPSA在 PC早期 (A- B期 )与中期 (C期 )之间无明显差异 ,但中期 (C期 )与晚期 (D期 )的 Dt PSA(T- PSA计算的 DPSA结果 )差异显著。