const predefined_data_types = {
    [id_data_type__categorical]: ["Nikotin", "APOE__A1", "APOE__A2", "Gender", "Akademiker", "Code_Boston", "verstorben_", "Group_coded", "Nikotin"],
    [id_data_type__numerical]: [],
    [id_data_type__date]: ["MRI_closest_to_lumbar_puncture", "ICH_at_lumbar_puncture"]
};