Major Histocompatibilty Complex (MHC) and T Cell Receptors

"MHC. Histocompatibility Ags. 1-Minor Histocompatibility Complex. HLA. 2-Major 
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Origin of self-similarity in the growth of complex networks

"Scaling, renormalization and self-similarity in complex networks. Chaoming Song 
(CCNY). Lazaros Gallos (CCNY). Shlomo Havlin (Bar-Ilan, Israel). Hernan A."