preferred_name: rest radionuclide ventriculography (feet up): left ventricle function vs. previous study
preferred_name_lc: rest radionuclide ventriculography (feet up): left ventricle function vs. previous study
label: rest radionuclide ventriculography (feet up): left ventricle function vs. previous study
label_lc: rest radionuclide ventriculography (feet up): left ventricle function vs. previous study