d STB-38 sbe15. Age-specific reference intervals for normally dist. data. d STB insert by d Eileen Wright Royal Postgraduate Medical School, UK; d Patrick Royston, Royal Postgraduate Medical School, UK. d Support: ewright@@rpms.ac.uk and proyston@@rpms.ac.uk d After installation, see help ^xrigls^. f sbe15/centcalc.ado f sbe15/centcalc.hlp f sbe15/xrigls.ado f sbe15/xrigls.hlp f sbe15/bpd.do f sbe15/bpd.dta