SPDL1 and coronary artery disorder: Using this ELISA method, we systematically quantified the median level of plasma sPD-L1 and found that it was 173.06 (144.81–231.50) pg/ml in normal adults and 247.03 (191.86–296.34) pg/ml in CAD patients; the highest median level of sPD-L1 in ACS patients was 256.72 (204.57–301.01) pg/ml.