Biomarkers included DNA ploidy , estrogen receptor ( ER ) , and epidermal growth factor receptor ( EGFR ) .
biomarkers included dna ploidy , estrogen receptor ( er ) , and epidermal growth factor receptor ( egfr ) .
O O B-other_name I-other_name O B-protein_family_or_group I-protein_family_or_group O B-protein_family_or_group O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O B-protein_family_or_group O O