title: Aging, immunity, and cardiopulmonary bypass surgery: adding insult to injury.
authors.forename: P K
authors.initials: PK
authors.lastname: Peterson
mesh_terms: D000368:Aged; D000375:Aging / Q000276:immunology*; D001402:B-Lymphocytes / Q000276:immunology; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology; D006348:Cardiac Surgical Procedures; D002315:Cardiopulmonary Bypass; D006801:Humans; D018655:Lymphocyte Count; D016131:Lymphocyte Subsets / Q000276:immunology*; D008231:Lymphopenia / Q000453:epidemiology / Q000503:physiopathology