Bowden, D M Immunologic markers in a longitudinal study of aging in pigtailed macaques (Macaca nemestrina). [electronic resource] - Journal of gerontology May 1994 - B93-103 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. ISSN: 0022-1422 Standard No.: 10.1093/geronj/49.3.b93 doi Subjects--Topical Terms: Aging--immunologyAnimalsBiomarkers--bloodCD4-Positive T-Lymphocytes--cytologyCohort StudiesCross-Sectional StudiesFeasibility StudiesFemaleImmunoglobulin A--bloodImmunoglobulin G--bloodImmunoglobulins--bloodKiller Cells, Natural--immunologyLeukocyte CountLongitudinal StudiesLymphocyte Activation--immunologyLymphocyte Subsets--cytologyMacaca nemestrinaMaleReproducibility of ResultsSex FactorsT-Lymphocytes, Helper-Inducer--cytologyT-Lymphocytes, Regulatory--cytology