d STB-43 sg84. Concordance correlation coefficient. d STB insert by d Thomas J. Steichen, RJRT; d Nicholas J. Cox, University of Durham, UK. d Support: steicht@@rjrt.com and n.j.cox@@durham.ac.uk d After installation, see help ^concord^. f sg84/concord.ado f sg84/concord.hlp f sg84/atkinson.dta f sg84/blalt.dta