d SJ2-2 st0012. Randomization-based efficacy estimator d by Ian R. White, MRC Biostatistics Unit, Cambridge, UK d Sarah Walker, MRC Clinical Trials Unit, London, UK d Abdel Babiker, MRC Clinical Trials Unit, London, UK d Support: ian.white@@mrc-bsu.cam.ac.uk, abdel.babiker@@ctu.mrc.ac.uk d After installation, type help ^strbee^ f st0012/immdef.dta f st0012/recens.dta f st0012/strbee.ado f st0012/strbee.do f st0012/strbee.hlp