Indometacin In Vitro and In Vivo Abolishes Post-Exercise Suppression of Natural Killer Cell Activity in Peripheral Blood - Pedersen, B K; Tvede, N; Klarlund, K; Christensen, L D; Hansen, F R; Galbo, H; Kharazmi, A; Halkjœr-Kristensen, J. (Int J Sports Med, 1990)