preferred_name: Twin birth, unspecified whether mate liveborn or stillborn, born before admission to hospital
preferred_name_lc: twin birth, unspecified whether mate liveborn or stillborn, born before admission to hospital
label: Twin birth, unspecified whether mate liveborn or stillborn, born before admission to hospital
label_lc: twin birth, unspecified whether mate liveborn or stillborn, born before admission to hospital