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Efficacy of endocrine therapy alone versus endocrine therapy combined with radiotherapy after breast-conserving surgery in older patients with early-stage estrogen receptor-positive breast cancer: a meta-analysis

Crossref DOI link: https://doi.org/10.1186/s12957-026-04417-0

Published Online: 2026-05-23

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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