Apoptosis was assessed by cell morphology , flow cytometry , annexin V protein level , and terminal deoxynucleotidyl transferase labeling of DNA fragments .
apoptosis was assessed by cell morphology , flow cytometry , annexin v protein level , and terminal deoxynucleotidyl transferase labeling of dna fragments .
B-other_name O O O B-other_name I-other_name O B-other_name I-other_name O B-other_name I-other_name I-other_name I-other_name O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O B-DNA_family_or_group I-DNA_family_or_group O