TTN and atrial fibrillation: Goodyer Goodyer WR WR Dunn Dunn K K Caleshu Caleshu C C Broad genetic testing in a clinical setting uncovers a high prevalence of titin loss-of-function variants in very early onset atrial fibrillation Broad genetic testing in a clinical setting uncovers a high prevalence of titin loss-of-function variants in very early onset atrial fibrillation Circ Genom Precis Med Circ Genom Precis Med 2019 2019 12 12 e002713 e002713 10.1161/CIRCGEN.119.002713 10.1161/CIRCGEN.119.002713 supplied-pmid 31638414?