Adding the causal gene, TBX5, to list 4+ (n = 13+1) revealed FOXF1 with TBX5 to be associated with Cardiac Left Ventricle Morphogenesis (GO:0003214, q = 4.346x10-3), Circulatory System Development (GO:0072359, q = 2.665x10-2), Heart Development (GO:0007507, q = 2.665x10-2), Abnormality of the Pulmonary Veins (HP:0004283, q = 9.239x10-4), Hypoplastic Heart (HP:0001961, q = 9.239x10-4), Complete Atrioventricular Canal Defect (HP:0001674, q = 9.239x10-4), Atrioventricular Canal Defect (HP:0006695, q = 1.162x10-3), and Ventricular Septal Defect (HP:0001629, q = 2.388x10-2). Here, TBX5 is linked to ventricular septal defect 1.