Original research 1506Tumour-infiltrating lymphocytes are correlated with higher expression levels of PD-1 and PD-L1 in early breast cancer
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open access
breast cancer
tumor-infiltrating lymphocytes
PD-L1
PD-1
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Funding: This study was supported by Japan and National Cancer Center Research and Development Funds (26-A-8).
Competing interests: None declared.
Ethics approval: This article does not contain any studies with animals performed by any of the authors. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
Provenance and peer review: Not commissioned; internally peer reviewed
© 2017 THE AUTHORS. Published by Elsevier Limited on behalf of European Society for Medical Oncology; Originally published by BMJ.