LDLR and familial hyperaldosteronism: The LDLR variants most frequently found in Polish FH patients include the following: NM_000527.5:c.1775G > A in exon 12 (p.Gly592Glu),1 c.662A > G in exon 4 (p.Asp221Gly), and two large rearrangements, duplication of exons 4–8, and deletion of exons 5–10.