preferred_name: Unspecified noxious substance affecting fetus or newborn via placenta or breast milk
preferred_name_lc: unspecified noxious substance affecting fetus or newborn via placenta or breast milk
label: Unspecified noxious substance affecting fetus or newborn via placenta or breast milk
label_lc: unspecified noxious substance affecting fetus or newborn via placenta or breast milk