d STB-58 snp16. Robust confidence intervals for median and other ... d Robust confidence intervals for median and other percentile d differences between two groups d STB insert by Roger Newson, Guy's, King's and St Thomas' School of Med, d London, UK d Support: roger.newson@@kcl.ac.uk d After installation, see help ^cendif^ f snp16/cendif.ado f snp16/cendif.hlp f snp16/somers_p.ado f snp16/somersd.ado f snp16/somersd.hlp