<a href="https://en.wikipedia.org/wiki/Space-filling_model" class="extiw" title="w:Space-filling model">Space-filling model</a> of <a href="https://en.wikipedia.org/wiki/bradykinin" class="extiw" title="w:bradykinin">bradykinin</a>. Created using <a rel="nofollow" class="external text" href="http://www.accelrys.com/products/downloads/ds_visualizer/index.html">Accelrys DS Visualizer Pro 1.6</a> and <a href="https://en.wikipedia.org/wiki/GIMP" class="extiw" title="w:GIMP">GIMP</a>.
<a href="//commons.wikimedia.org/wiki/User:Fvasconcellos" title="User:Fvasconcellos">Fvasconcellos</a>
Own work, from <a href="https://en.wikipedia.org/wiki/PubChem" class="extiw" title="w:PubChem">PubChem</a> <a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=439201">CID 439201</a>