preferred_name: No need for further workup, as <2% chance of pulmonary embolus (PE)
preferred_name_lc: no need for further workup, as <2% chance of pulmonary embolus (pe)
label: No need for further workup, as <2% chance of pulmonary embolus (PE)
label_lc: no need for further workup, as <2% chance of pulmonary embolus (pe)