Fig. 1From: The predictive effect of direct-indirect bilirubin ratio on clinical events in acute coronary syndrome: results from an observational cohort study in north ChinaFlow chart of study subject enrollment. (CBD, Cardiovascular Center of Beijing Friendship Hospital Database; ACS, acute coronary syndrome; CAG, coronary angiography; DIBIL ratio, the ratio of direct bilirubin (umol/L)/Indirect bilirubin (umol/L))Back to article page