Albert von Kölliker, Swiss anatomist
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en:WP, user:Rsabbatini, <a rel="nofollow" class="external text" href="http://ihm.nlm.nih.gov/images/B16677">NIH libraries</a> <a rel="nofollow" class="external autonumber" href="https://wellcomeimages.org/indexplus/imageM0010869.html">[1]</a>