Methods The concentration of serum of ET and TNF of 20 critically ill patients, 18 non-critically ill patients, 10 rats with endotoxic shock and 10 normal rats were tested.

• 方法 我们检测了20例危重儿，18例非危重儿，10例内毒素性休克大鼠与正常大鼠的血浆内皮素与肿瘤坏死因子的含量。