d STB-52 sg121: Seemingly unrelated est. & cluster-adjusted sandwich est.
d STB insert by Jeroen Weesie, Utrecht University, The Netherlands
d Support: j.weesie@@fss.uu.nl
d After installation, see help ^suest^ and help ^pprecmd^

f sg121/pprecmd.ado
f sg121/pprecmd.hlp
f sg121/suest.ado
f sg121/suest.hlp
f sg121/clogit2.ado