preferred_name: Discrete pitting of the enamel exists, unaccompanied by evidence of staining of intact enamel
preferred_name_lc: discrete pitting of the enamel exists, unaccompanied by evidence of staining of intact enamel
label: Discrete pitting of the enamel exists, unaccompanied by evidence of staining of intact enamel
label_lc: discrete pitting of the enamel exists, unaccompanied by evidence of staining of intact enamel