\begin{table}%t3
%\centering
\par
%\fontsize{8} {10pt}\selectfont
%\tabcolsep 0.20truecm
\caption{NGC~1901 abundance analysis with NLTE correction applied when necessary.\label{tab3}}
\small\begin{tabular}{ccc}
\hline\hline
\multicolumn{1}{c}{Element}         &
\multicolumn{1}{c}{LTE value}        &
\multicolumn{1}{c}{NLTE value} \\
\hline
 & dex & dex\\
\hline
\rm{[FeI/H]}    &--0.08~$\pm$~0.02&\\
\rm{[FeII/H]}    &--0.08~$\pm$~0.03&\\
\rm{[OI/H]7774}  &+0.05~$\pm$~0.09& --0.06~$\pm$~0.09\\
\rm{[OI/H]6300}  &--0.05~$\pm$~0.10&\\
\rm{[NaI/H]}     &--0.12~$\pm$~0.09& --0.02~$\pm$~0.09\\
\rm{[MgI/H]}     &--0.29~$\pm$~0.06& --0.13~$\pm$~0.06\\
\rm{[SiI/H]}     &--0.05~$\pm$~0.06&\\
\rm{[CaI/H]}     &--0.15~$\pm$~0.06&\\
\rm{[TiI/H]}     &--0.08~$\pm$~0.03&\\
\rm{[TiII/H]}    &--0.08~$\pm$~0.06&\\
\rm{[CrI/H]}     &--0.08~$\pm$~0.04&\\
\rm{[NiI/H]}     &--0.09~$\pm$~0.03&\\
\rm{[BaII/H]}    &+0.27~$\pm$~0.06&\\
\hline
\end{tabular}
\end{table}