\begin{Schunk}
\begin{Sinput}
 confint(m0)
\end{Sinput}
\begin{Soutput}
                   2.5 %     97.5 %
(Intercept) -0.524962270  0.2814709
x1          -0.004972956  0.4047652
x2          -0.893032200 -0.4915659
x3fmed      -0.538768748  0.6040747
x3fhi       -0.714759429  0.4260814
x1:x2       -0.684335100 -0.3312497
\end{Soutput}
\end{Schunk}
