preferred_name: POLK and POLZ cooperate in elongation of mispaired primer termini (Canis familiaris)
preferred_name_lc: polk and polz cooperate in elongation of mispaired primer termini (canis familiaris)
label: POLK and POLZ cooperate in elongation of mispaired primer termini (Canis familiaris)
label_lc: polk and polz cooperate in elongation of mispaired primer termini (canis familiaris)