preferred_name: Stricture of bile duct, except cystic duct, without mention of calculus
preferred_name_lc: stricture of bile duct, except cystic duct, without mention of calculus
label: Stricture of bile duct, except cystic duct, without mention of calculus
label_lc: stricture of bile duct, except cystic duct, without mention of calculus