Somatic mutations in cardiac malformations

It has come to our attention that there may be some confusion about the relationship of the data in two of our NKX2-5 papers. Therefore, this correspondence aims to address the following issues: firstly, the relationship and the differences between our two NKX2-5 papers1,2 and secondly, the research need for congenital heart disease (CHD) on the basis of somatic mutations.