\begin{table}%t2
  \caption{Nuclear reaction rates adopted for the NeNa- and MgAl-chains in
  the sets~B--D. [N], [I], [H02] and [H04] correspond respectively to
  \citet{AnguloArnould1999}, \citet{IliadisStarrfield2001} and
  \citet{HaleChampagne2002,HaleChampagne2004}. "Nom.'',
  "low.'' and "up.'' refer respectively to nominal, lower and upper
  limits of the experimental values. For all the other reactions of our
  network we use the NACRE nominal values.}
  \label{tab:NR}
  %\centering
\small
  \begin{tabular}{ccccc}
    \hline \hline
    Reaction & Set A & Set B & Set C & Set D \\
    \hline
   % &&&& \\[-8pt]
    \el{Ne}{20}($p,\gamma$) & [N], nom. & [N], nom. & [N], low.  & [N], low. \\
    \el{Ne}{21}($p,\gamma$) & [N], nom. & [I], nom. & [I], low.  & [I], low. \\
    \el{Ne}{22}($p,\gamma$) & [N], nom. & [H2], nom. & [H2], low. & [H2], low. \\
    \el{Na}{23}($p,\gamma$) & [N], nom. & [H4], nom. & [H4], low. & [H4], low. \\
    \el{Na}{23}($p,\alpha$) & [N], nom. & [H4], nom. & [H4], up. & [H4], up. \\
    \el{Mg}{24}($p,\gamma$) & [N], nom. & [I], nom. & [I], up.   & [I], +3~dex  \\
    \el{Mg}{25}($p,\gamma$) & [N], nom. & [I], nom. & [I], up.   & [I], up. \\
    \el{Mg}{26}($p,\gamma$) & [N], nom. & [I], nom. & [I], up.   & [I], up. \\
    \el{Al}{27}($p,\gamma$) & [N], nom. & [I], nom. & [I], low.  & [I], low. \\
    \el{Al}{27}($p,\alpha$) & [N], nom. & [I], nom. & [I], low.  & [I], low. \\
    \hline
  \end{tabular}
\end{table}