We will apply radioimmunoassay (RIA) to evaluate the level of ET-1 in plasma, and investigate: 1 how does operation effect ET-1 of plasma in breast cancer?

• 我们应用放射免疫分析法(radioimmunoassay,RIA)对血液中ET-1进行测定,在以下几方面进行探讨:1手术治疗对乳腺癌血清ET-1有何影响?