Atrial Fibrillation, Familial, 6, also known as atfb6, is related to atrial standstill 2 and cardiovascular system disease. An important gene associated with Atrial Fibrillation, Familial, 6 is NPPA (Natriuretic Peptide A). Affiliated tissues include heart and heart-atrium, and related phenotypes are atrial fibrillation and left atrial enlargement