[<a href="../facebook/nl/3418/index.html" itemprop="sameAs" rel="nofollow noopener" target="_blank"> Universiteit Leiden's Facebook page</a>, <a href="../twitter/nl/3418/index.html" itemprop="sameAs" rel="noopener nofollow" target="_blank"> Universiteit Leiden's Twitter webpage</a>, <a href="https://www.linkedin.com/school/leiden-university/" itemprop="sameAs" rel="noopener nofollow" target="_blank"> Universiteit Leiden's LinkedIn profile</a>, <a href="../youtube/nl/3418/index.html" itemprop="sameAs" rel="nofollow noopener" target="_blank"> Universiteit Leiden's YouTube or Vimeo channel</a>, <a href="https://en.wikipedia.org/wiki/Leiden_University" itemprop="sameAs" rel="noopener nofollow" target="_blank"> Universiteit Leiden's Wikipedia article</a>]