d STB-8 sg1_3. Nonlinear regression command, bug fix. d STB insert by Patrick Royston, Royal Postgraduate Medical School, London. d Support: FAX (011)-44-81-740 3119 d After installation, see help ^nl^. f sg1_3/_nlout.ado f sg1_3/nl.ado f sg1_3/nl.hlp f sg1_3/nlinit.ado f sg1_3/nlinit.hlp f sg1_3/nlpred.ado f sg1_3/nlpred.hlp