Nieman, D C Immune function in marathon runners versus sedentary controls. [electronic resource] - Medicine and science in sports and exercise Jul 1995 - 986-92 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. ISSN: 0195-9131 Standard No.: 10.1249/00005768-199507000-00006 doi Subjects--Topical Terms: AdultCase-Control StudiesCytotoxicity, Immunologic--physiologyHumansImmunity, CellularKiller Cells, Natural--immunologyLymphocyte ActivationMaleMiddle AgedOxygen ConsumptionPhysical Endurance--physiologyRunning--physiology