The mvcorr (MoVing CORRelation) routine of Cox and Baum has been
updated to include a -force- option that enhances its use with
missing data (following the changes made to routine mvsumm described
in a recent message). The mvcorr routine is available to users of
Stata 8 or 9. It may be downloaded from the SSC archive via ssc
install mvcorr, replace.