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Peparini, N., Chirletti, P. Lymph node ratio, number of excised nodes and sentinel-node concepts in breast cancer. Breast Cancer Res Treat 126, 829–833 (2011). https://doi.org/10.1007/s10549-010-1296-y
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DOI: https://doi.org/10.1007/s10549-010-1296-y