Sample size and power for a logrank test and Cox proportional hazards model with multiple groups and strata, or a quantitative covariate with multiple strata
Crossref DOI link: https://doi.org/10.1002/sim.5839
Published Online: 2013-05-13
Published Print: 2013-11-10
Update policy: https://doi.org/10.1002/crossmark_policy
Lachin, John M.
Version of Record valid from 2013-05-13
Text and Data Mining valid from 2013-05-13