
\begin{center}
\begin{tabular}{ll}
Classification & Endoscopy Examination \\ \hline
1 & No visible lesions \\
2 & One haemorrhage or erosion \\
3 & 2-10 haemorrhages or erosions \\
4 & 11-25 haemorrhages or erosions \\
5 & More than 25 haemorrhages or erosions \\ 
  & or an invasive ulcer of any size\\ \hline
\end{tabular}
\end{center}
