TBX20 and familial dilated cardiomyopathy: Among those genes are eight well known DCM-associated genes (Additional file 1: Table S6, reproduced from [20]), which is significantly more than expected by chance (odds ratio (OR) = 7.9, P = 2.09e-05).These include RBM20, LAMA2, and TBX20, which were all upregulated in DCM.