The results showed that the mRNA levels of both RPL3L and SDHA significantly correlated with the infiltration scores of five (CD4-naive T cell, CD8-naive T cell, cytotoxic T cell, gamma delta T cell and CD8 T cell) out of the seven immune cell types that were different between DCM and normal heart, while no correlation was observed for MYL4. The gene discussed is MYL4; the disease is familial dilated cardiomyopathy.