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Unadjusted proportions of patients age ≥ 65 years and ≥ 70 years enrolled in all trials (A), by trial type for age ≥ 65 years and ≥ 70 years (B, C), and after exclusion of Cancer and Leukemia Group B (CALGB) 49907, North Central Cancer Treatment Group (NCCTG) 89-30-52, and American College of Surgeons Oncology Group (ACOSOG) Z1031 (D).
