Serum concentration of endogenous digitalis-like factor(EDF)in 41 patients with acute cerebrovascular disease(ACVD)and 50 normal controls was deter-mined by radioimmunoassay.

• 用放射免疫法测定41例急性脑血管病(ACVD)患者和50例正常人血清内源性洋地黄样甲子(EDF)浓度。