Many reviewers have contributed their expertise and time to the peer review,a critical process to ensure the quality of World Journal of Clinical Oncology.The editors and authors of the articles submitted to the journal are grateful to the following reviewers for evaluating the articles(including those published in this issue and those rejected for this issue)during the last editing time period. Many reviewers have contributed their expertise and time to the peer review, a critical process to ensure the quality of World Journal of Clinical Oncology. Editors and authors of the articles submitted to the journal are grateful to the following reviewer for evaluating the articles (including those published in this issue and those rejected for this issue) during the last editing time period.