preferred_name: Delivery of a child weighing less than 5 lb 8 oz (or 2500 grams)
preferred_name_lc: delivery of a child weighing less than 5 lb 8 oz (or 2500 grams)
label: Delivery of a child weighing less than 5 lb 8 oz (or 2500 grams)
label_lc: delivery of a child weighing less than 5 lb 8 oz (or 2500 grams)