RBM20 and familial dilated cardiomyopathy: High-risk features for each cardiomyopathy phenotype (HCM, DCM, ARVC) and gene-specific (Filamin C (FLNC), desmoplakin (DSP), RNA binding motif protein 20 (RBM20)) high-risk features are elaborated on in Chapter 7 of the ESC guideline.