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   Takeshi Tominaga et al, 2003, Journal of Clinical Oncology CrossRef
3. The impact of age on the risk of ipsilateral breast tumor recurrence after breast-conserving therapy in breast cancer patients with a > 5 mm margin treated without boost irradiation
   Yuka Ono et al, 2019, Radiation Oncology CrossRef
4. Thymidine phosphorylase and dihydropyrimidine dehydrogenase are predictive factors of therapeutic efficacy of capecitabine monotherapy for breast cancer-preliminary results
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