\documentclass[a0,portrait]{a0poster}
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\begin{document}
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%%%%%%%%%%%%%%%%%%% Cabeçalho %%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%  Título %%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%% Autores %%%%%%%%%%%%%%%%%%%%%
\begin{center}
\vspace{0.3cm}
{\huge{NOME1$^{1*}$,  NOME2$^1$\\
\vspace{0.3cm}
$^1$INST\\
\vspace{0.3cm}
$^{*}$EMAIL\\
}}
\end{center}
\vspace{1cm}
\Large
\begin{multicols}{2}
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\section{Introdução}
\lipsum[2-4]
\section{Metodologia}
\lipsum[1]
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\section{Resultados}
\lipsum[2-4]
\section{Conclusão}
\lipsum[1-2]
\vspace{1cm}\
\noindent
\begin{thebibliography}{99}
\bibitem[1]{Box}
Box, G. E. P. \& Tiao, G. C. (1973), \textit{Bayesian inference in statistical analysis}, Addison-Wesley Publishing Co., Reading, Mass.-London-Don Mills,
Ont. Addison-Wesley Series in Behavioral Science: Quantitative Methods.
\bibitem[2]{Dunson}
Dunson, D. B. \& Herring, A. H. (2005), 'Bayesian latent variable models for mixed discrete outcomes.', \textit{Biostatistics} \textbf{6}(1), 11-25.
\end{thebibliography}
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\begin{center}
{\parbox{10cm}{
{\bf{
{\color{NTNUBlue}{Agradecimentos}}
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\noindent Agradecemos ao XXXXX pelo financiamento desta impressão.
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\end{multicols}
\end{document}
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