Matched sampling is a standard technique for controlling bias in observational studies due to specific covariates. Since Rosenbaum & Rubin (1983), multivariate matching methods based on estimated ...
1. Black N: Why we need observational studies to evaluate the effectiveness of health care. BMJ 1996; 312:1215–8 CrossRef 2. McKee M, Britton A, Black N, McPherson K, Sanderson C, Bain C: Methods in ...
Activation of central/effector memory T cells in advanced gastric cancer patients treated with antiprogrammed death-1 antibody. This is an ASCO Meeting Abstract from the 2019 Gastrointestinal Cancers ...
This is a preview. Log in through your library . Abstract Cluster randomization trials with relatively few clusters have been widely used in recent years for evaluation of health-care strategies. On ...
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