preferred_name: Subendocardial branch of posterior division of left branch of atrioventricular bundle
preferred_name_lc: subendocardial branch of posterior division of left branch of atrioventricular bundle
label: Subendocardial branch of posterior division of left branch of atrioventricular bundle
label_lc: subendocardial branch of posterior division of left branch of atrioventricular bundle