Inferring the effects of cancer treatment: divergent results from early breast cancer trialists' collaborative group meta-analyses of randomized trials and observational data from SEER registries
To compare the effect of breast cancer radiotherapy as estimated from observational data with findings from randomized trials.Rate ratios were obtained for selected end points among 13,932 women randomly assigned to receive radiotherapy or not in trials contributing to recent meta-analyses by the Ea...
Main Authors: | , , , , , |
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Format: | Journal article |
Language: | English |
Published: |
American Society of Clinical Oncology
2016
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