preferred_name: Fibrocollagenous connective tissue of accessory atrioventricular bundle
preferred_name_lc: fibrocollagenous connective tissue of accessory atrioventricular bundle
label: Fibrocollagenous connective tissue of accessory atrioventricular bundle
label_lc: fibrocollagenous connective tissue of accessory atrioventricular bundle