\begin{Schunk}
\begin{Sinput}
 library(mitools)
 int.betas <- MIextract(sem.01.int.fits, fun = coef)
 int.vars <- MIextract(sem.01.int.fits, fun = vcov)
 int.fits.pooled <- summary(MIcombine(int.betas, int.vars))
\end{Sinput}
\end{Schunk}
