<a href="https://en.wikipedia.org/wiki/en:Medical_University_of_Warsaw" class="extiw" title="w:en:Medical University of Warsaw">Medical University of Warsaw</a>, Poland
<a href="//commons.wikimedia.org/wiki/User:Patrol110" title="User:Patrol110">Patryk Korzeniecki</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>