main.tex

\documentclass[10pt]{beamer}

\usepackage{import}
\usepackage{preamble}
\usepackage{notation}

\title{MRC CTU at UCL Template}
\subtitle{}
\date{\today}
\author{}
\institute{MRC CTU at UCL \\ 
            Institute of Clinical Trials and Methodology \\ 
            University College London}
\titlegraphic{\hfill\includegraphics[height = 1.5cm]{logo-2.png}}

\begin{document}

\maketitle

\begin{frame}{Outline}
  \setbeamertemplate{section in toc}[sections numbered]
  \tableofcontents[hideallsubsections]
\end{frame}

% ------------------  Sections   --------------------
\input{sections/section-1}
\input{sections/section-2}

% ------------------  References --------------------
\begin{frame}[allowframebreaks]{References} 
\tiny
\printbibliography[heading = none]
\end{frame}
% ------------------  Appendix  --------------------

\end{document}