[Retracted] Establishment of a Nomogram for Predicting Early Death in Viral Myocarditis

Figure 4

The performance of the nomogram. Calibration plot of the nomogram in (a) the training cohort and (b) validation cohort. The receiver operating characteristic (ROC) curves of the nomogram in (c) the training cohort and (d) the validation cohort.

(a)

(b)

(c)

(d)