tokens: Premenopausal patients with neither risk factor had a very low failure rate ( 2 . 6% at 5 years ) , regardless of age .
folded_tokens: premenopausal patients with neither risk factor had a very low failure rate ( 2 . 6% at 5 years ) , regardless of age .
labels: B-multi_cell B-multi_cell O O O O O O O O O O O O O O O O O O O O O O O