Determination of serum endogenous digitalislike factor(EDF)was carried out by radioimmunoassay in 35 patients with chronic congestive heart failure.

• 本文用放射免疫方法测定35例慢性充血性心力衰竭患者和20例正常人血清 EDF 浓度,结果显示:慢性充血性心力衰竭组血清 EDF 浓度明显低于正常组;