fix

src/contents/safety.tsx

@@ -214,6 +214,7 @@ export const Safety: React.FC = () =>{
                         <a className="doi" href="https://doi.org/10.3390/ijn6010018"> doi: 10.3390/ijn6010018</a>
                     </li>
                 </ol>
+            </Section>
     </>
   );
 }