Methods Serum TNF (with RIA) and NO/NOS (with bio chemistry) levels were determined in 31 patients with hepatic cancer both before and after operation as well as in 35 controls.

• 方法:分别应用放免法和化学法测定31例原发性肝癌患者血NO/NOS和TNF含量,并与35名正常健康人作比较。