Methods The level of solu-ble interleukin -2 receptors (sIL - 2R) were measured by an enzyme linked immunosorbent assay in 82 old patients of viral hepatitis.

• 方法 采用夹心酶联免疫吸附法测定82例老年病毒性肝炎患者血清sIL-2R的水平。