title: Thymus and bursa of Fabricius responses in chickens with non-tumoral forms of Rous sarcoma virus infections.
mesh_terms: D000818:Animals; D001353:Avian Leukosis / Q000276:immunology*; D001358:Avian Sarcoma Viruses / Q000276:immunology*; D002060:Bursa of Fabricius / Q000276:immunology*; D002645:Chickens; D013950:Thymus Gland / Q000276:immunology*