I have a small problem with the \column command in the beamer class.
Up to now, it has worked perfectly but somehow a problem with the spacing has appeared.
\documentclass{beamer}
\begin{document}
\begin{frame}[fragile]
\frametitle{Argumente}
\begin{columns}[c] % The "c" option specifies centered vertical alignment while the "t" option is used for top vertical alignment
\column{.45\textwidth} % Left column and width
\centering \textbf{Pro}
\vspace{0.2cm}
\begin{itemize}
\item Vergleichbarkeit mehrerer Studien gewährleistet
\item Entscheidungshilfen für gesundheitspolitische Fragen
\item Überblick über Forschungslage
\end{itemize}
\column{.45\textwidth} % Right column and width
\centering \textbf{Kontra}
\vspace{0.2cm}
\begin{itemize}
\item \enquote{Äpfel-Birnen Problem}
\item \enquote{Garbage in - garbage out}
\item \emph{Publication bias}
\end{itemize}
\end{columns}
\end{frame}
\end {document}
It looks like this. I think the problem is quite obvious. I would like to make the "Pro" and the "Kontra" as well as the items appear in one line

Thank you very much for your help.
Helena
\begin{columns}[t]do what you want? – Phelype Oleinik Jan 05 '19 at 11:26csquotespackage and you should only use thefragileframe option in frames where you really need it, not in a simple frame with columns and normal text. – samcarter_is_at_topanswers.xyz Jan 05 '19 at 12:37beamerexpert to choose what to do ;) – Phelype Oleinik Jan 14 '19 at 12:41