title: Back to basics: primary immune deficiencies: windows into the immune system.
authors.affiliation: Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Department of Health and Human Services, Bethesda, Md, USA.
authors.forename: Thomas A
authors.initials: TA
authors.lastname: Fleisher
mesh_terms: D000328:Adult; D017951:Antigen Presentation / Q000502:physiology; D001402:B-Lymphocytes / Q000502:physiology; D002648:Child; D006105:Granulomatous Disease, Chronic / Q000175:diagnosis / Q000503:physiopathology; D006680:HLA Antigens / Q000502:physiology; D006801:Humans; D007109:Immunity / Q000276:immunology / Q000502:physiology*; D007153:Immunologic Deficiency Syndromes / Q000175:diagnosis* / Q000276:immunology / Q000503:physiopathology / Q000628:therapy*; D018655:Lymphocyte Count; D013601:T-Lymphocytes / Q000502:physiology
chemical_list: D006680:HLA Antigens