We present a procedure that divides a set of experimental units into two groups that are similar on a prespecified set of covariates and are almost as random as with a complete randomization. Under ...

The authors used a Monte Carlo simulation to examine how the violation of the exchangeability assumption affects empirical Type I error rates of the LMH randomization ...

Chronic Physical Effects and Health Care Utilization in Long-Term Ovarian Germ Cell Tumor Survivors: A Gynecologic Oncology Group Study Enrichment based on molecular characteristics has emerged as an ...

Chronic Physical Effects and Health Care Utilization in Long-Term Ovarian Germ Cell Tumor Survivors: A Gynecologic Oncology Group Study Enrichment based on molecular characteristics has emerged as an ...

ANN ARBOR, Mich. — It's a classic Catch-22: Medical researchers need to figure out if a promising new treatment is truly better than a current one, by randomly assigning half of a group of patients to ...