Scatter diagram representing the relationship between the modified scores of RUCAM and IAIHG in the derivation cohort. Horizontal axis indicates the modified RUCAM score and vertical axis indicates the modified international AIH group (IAIHG) score. Dark gray, gray, and white circles indicate DILI, AIH, or UC (undetermined) patients, respectively. Size of circle indicates number of patients (A). ROC analysis of modified scores of RUCAM (B) and IAIHG (C).