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                                                Natural killer cell- illustration
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                                                Image source: https://commons.wikimedia.org/wiki/File:Nautral_killer_cell_%28Large_granular_lymphocyte%29.svg  
Author: A rad,  Mikael Häggström, Spacebirdy, RexxS, domdomegg 
  
Title: Nautral_killer_cell_(Large_granular_lymphocyte).svg 
 
This image has been extracted from another file: Hematopoiesis (human) diagram en.svg. 
 
No changes were made from the downloaded file.   
 
This file (Nautral killer cell (Large granular lymphocyte).svg) is licensed under the Creative Commons Attribution-Share Alike 4.0 International license. https://creativecommons.org/licenses/by-sa/4.0/deed.en/ 
 
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Hematopoiesis (human) diagram en.svg:  
Authors  
Original: A rad 
Vector: RexxS, Mikael Häggström, and birdy  
 
File found on Wikimedia Commons https://commons.wikimedia.org/wiki/File:Hematopoiesis_(human)_diagram_en.svg 
 
This file (Hematopoiesis (human) diagram en.svg ) is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC BY-SA 3.0) https://creativecommons.org/licenses/by-sa/3.0/deed.en/ 
 
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. https://commons.wikimedia.org/wiki/Commons:GNU_Free_Documentation_License,_version_1.2 
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