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. Author manuscript; available in PMC: 2009 Mar 18.
Published in final edited form as: Immunol Lett. 2008 Dec 25;122(2):134–136. doi: 10.1016/j.imlet.2008.11.013

Fig. 2.

Fig. 2

It is now clear that the immune system is a delicate balance between the pathogenic factor/helper T-cells and natural/induced Treg cells.