Method: Serum sIL?2R level was measured with ELISA assay in 70 patients with different liver diseases and 22 healthy persons.

• 方法：采用双抗体夹心ELISA法检测慢性乙型肝炎、肝硬化和原发性肝癌患者（共70例）与健康人（22例）的外周血sIL?2R水平，并比较原发性肝癌（15例）手术前后sIL?2R水平的变化。