tokens: Risk factors for breast recurrence in premenopausal and postmenopausal patients with ductal cancers treated by conservation therapy .
folded_tokens: risk factors for breast recurrence in premenopausal and postmenopausal patients with ductal cancers treated by conservation therapy .
labels: O O O O O O O O O O O B-other_name I-other_name O O B-other_name I-other_name O