\begin{table}%t3
 \caption{\label{tab3}Disc outer radius and inclination ($i$=0 corresponds to the face-on orientation) as used in the SED fitting, from our parametric models, and direct observations.} 
%\centerline
{
\begin{tabular}{c c c c c c c c}
 \hline \hline
Source	 &SED modelling$^{\rm a}$ &  	& 	&Parametric models &($p=1$) &Observed values & \\
	 &$R_{\rm out}$	& $i$	& $p$	&$R_{\rm out}$	   & $i$	& $R_{\rm out}$	& $i$ \\
 \hline
HD~100546 & 400 & 51     	& 0.0	& 300 & 45 		& 350--380$^{b}$, 200$^{c}$    & 51 $\pm$ 3$^{b}$, 50 $\pm$ 5$^{c}$  \\
HD~179218 & 30 & 20		& --0.8	& 200 & 60		& -- & -- \\
AB~Aur   & 400 & 65 	& 2.0	& $>$800 & 10--20		& 1050$^{d}$ & 33 $\pm$ 1$^{d}$ \\
HD~163296 & 50 & 65 		& 0.2	& 350 & 40 		& 540$^{e}$ & 46 $\pm$ 4$^{e}$ \\
HD~169142 & 100 & 8 		& 2.0	& 200 & 5 		& 235$^{f,g}$ & 13 $\pm$ 1$^{f,g}$ \\
HD~139614 & 60 & 20		& 0.1	&100 & 0		& -- & -- \\
HD~142666 & 10 & 55		& --0.5	&75 & 5			& -- & -- \\
HD~135344 & 800 & 60		& 0.8	&50 & 5			& 210~$^{h}$, $\geq$150~$^{j}$ & 46 $\pm$ 5$^{h}$, 14 $\pm$ 4$\degr$~$^{i}$, $\leq$20${\degr}$~$^{j}$\\
\hline
\end{tabular}}
\medskip
$^{a}$ \citet{DDWW} (note that they use $p$ as $\Sigma \propto R^p$).
$^{b}$ \citet{augereau}, spatially resolved near-infrared coronographic scattered light observations.
$^{c}$  \citet{pantin}, spatially resolved $J$ and $K$ band near-infrared observations. 
$^{d}$  \citet{pietu0}, spatially resolved $^{12}$CO $J=2{-}1$ line observations.
$^{e}$  \citet{isella}, spatially resolved $^{12}$CO $J=2{-}1$ and $J=3{-}2$, and  $^{13}$CO $J=1{-}0$ line observations.
$^{f}$  \citet{raman}, spatially resolved $^{12}$CO $J=2{-}1$ line observations.
$^{g}$  \citet{panic}, spatially resolved $^{12}$CO, $^{13}$CO and C$^{18}$O  $J=2{-}1$ line observations.
$^{h}$  \citet{doucet}, mid-infrared interferometry.
$^{i}$  \citet{pontoppidan}.
$^{j}$  \citet{grady2009}.%\vspace*{2mm}
\end{table}