preferred_name: Personal history of (corrected) congenital malformations of heart and circulatory system
preferred_name_lc: personal history of (corrected) congenital malformations of heart and circulatory system
label: Personal history of (corrected) congenital malformations of heart and circulatory system
label_lc: personal history of (corrected) congenital malformations of heart and circulatory system