AUTHOR=Miyazaki Yumi, Tsumiyama Ken, Yamane Takashi, Ito Mitsuhiro, Shiozawa Shunichi TITLE=Self-Organized Criticality Theory and the Expansion of PD-1-Positive Effector CD4 T Cells: Search for Autoantibody-Inducing CD4 T Cells JOURNAL=Frontiers in Immunology VOLUME=4 YEAR=2013 URL=https://www.frontiersin.org/articles/10.3389/fimmu.2013.00087 DOI=10.3389/fimmu.2013.00087 ISSN=1664-3224