Scheme of the female menstrual cycle
<ul><li><a href="//commons.wikimedia.org/wiki/File:MenstrualCycle_de.svg" title="File:MenstrualCycle de.svg">MenstrualCycle_de.svg</a>: <a href="https://de.wikipedia.org/wiki/Benutzer:Thire" class="extiw" title="de:Benutzer:Thire">Thomas Steiner</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:M.Komorniczak" title="User:M.Komorniczak">Michał Komorniczak</a> (<a href="//commons.wikimedia.org/wiki/User_talk:M.Komorniczak" title="User talk:M.Komorniczak"><span class="signature-talk">talk</span></a>)</li></ul>
CC BY-SA 2.5
<ul><li><a href="//commons.wikimedia.org/wiki/File:MenstrualCycle_de.svg" title="File:MenstrualCycle de.svg">MenstrualCycle_de.svg</a></li></ul>