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 ...

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 ...

Background. Health services researchers are often interested in the effect of a treatment or a service in situations in which randomization is difficult or impossible. One useful alternative involves ...

Health-related quality of life as a prognostic indicator of biochemical recurrence free survival in high-risk prostate cancer patients following radical prostatectomy.