This <a href="https://en.wikipedia.org/wiki/vector_image" class="extiw" title="w:vector image">vector image</a> includes elements that have been taken or adapted from this file:
<a href="//commons.wikimedia.org/wiki/User:A._Rad~commonswiki" title="User:A. Rad~commonswiki">A. Rad</a>, <a href="//commons.wikimedia.org/wiki/User:Mikael_H%C3%A4ggstr%C3%B6m" title="User:Mikael Häggström">Mikael Häggström</a>, <a href="//commons.wikimedia.org/wiki/User:Spacebirdy" title="User:Spacebirdy">Spacebirdy</a>, <a href="//commons.wikimedia.org/wiki/User:RexxS" title="User:RexxS">RexxS</a>, <a href="//commons.wikimedia.org/wiki/User:Domdomegg" title="User:Domdomegg">domdomegg</a>
CC BY-SA 4.0
<a href="//commons.wikimedia.org/wiki/File:Hematopoiesis_(human)_diagram_en.svg" title="File:Hematopoiesis (human) diagram en.svg">File:Hematopoiesis (human) diagram en.svg</a>