SLC16A2 and atrial fibrillation: The first one is the SLC16A2 gene variant NC_000023.10:g.73744270G > A (NM_006517:c.652G > A, p.(Val218Ile)), which is present in Gnomad (AF 0.00001) and was interpreted as not causative also in view of the normality of the thyroid hormone profiles in the proband.