Familial hypercholesterolemia (FH, OMIM #143890) is an autosomal dominant genetic disorder caused by mutations in the genes coding for the low-density lipoprotein receptor (LDLR), apolipoprotein B (APOB), and pro-protein convertase subtilisin/kexin 9 (PCSK9) [3]. Here, LDLR is linked to familial hypercholesterolemia.