title: Aging and the immune system.
authors: National Institute on Aging, NIH.
authors: D
authors: D
authors: Segre
authors: R A
authors: RA
authors: Miller
authors: G N
authors: GN
authors: Abraham
authors: W O
authors: WO
authors: Weigle
authors: H R
authors: HR
authors: Warner
mesh_terms: D000375:Aging / Q000276:immunology*; D000818:Animals; D006801:Humans; D007125:Immunogenetics; D008214:Lymphocytes / Q000276:immunology