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Open accessResearch articleFirst published December, 2019

Multiarm,multistage randomized controlled trials with stopping boundaries for efficacy and lack of benefit: An update to nstage

Alexandra Blenkinsop, Babak Choodari-Oskooei

The Stata Journal: Promoting communications on statistics and Stata

Free accessResearch articleFirst published June, 2015

Daniel J. Bratton, Babak Choodari-Oskooei, Patrick Royston

The Stata Journal: Promoting communications on statistics and Stata

Free accessResearch articleFirst published December, 2009

Friederike M.-S. Barthel, Patrick Royston, Mahesh K. B. Parmar

The Stata Journal: Promoting communications on statistics and Stata

Open accessResearch articleFirst published April, 2019

Alexandra Blenkinsop, Mahesh KB Parmar, Babak Choodari-Oskooei

Clinical Trials