title: A biphasic graft vs host response in aging chickens.
mesh_terms: D000375:Aging; D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology; D002645:Chickens / Q000276:immunology*; D005260:Female; D006087:Graft vs Host Reaction; D008214:Lymphocytes / Q000276:immunology*; D008297:Male; D012737:Sex Factors; D013154:Spleen / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology