Causal assessment of surrogacy in a meta-analysis of colorectal cancer trials

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A Bayesian Approach to Surrogacy Assessment Using Principal Stratification in Clinical Trials

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Related Causal Frameworks for Surrogate Outcomes

(2008) Marshall M. Joffe et al.   BIOMETRICS

Information Theory–Based Surrogate Marker Evaluation from Several Randomized Clinical Trials with Binary Endpoints, Using SAS

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Evaluating time to cancer recurrence as a surrogate marker for survival from an information theory perspective

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Two simple approaches for validating a binary surrogate endpoint using data from multiple trials

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