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Puhr, H.C., Ilhan-Mutlu, A. Clinical characteristics and comparison of the outcome in young versus older patients with upper gastrointestinal carcinoma. J Cancer Res Clin Oncol 147, 1567–1568 (2021). https://doi.org/10.1007/s00432-021-03540-7
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DOI: https://doi.org/10.1007/s00432-021-03540-7