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(a) The percent change of 8-hydroxy 2′deoxyguanosine (8-OHdG) from pre-flight values for Mir (n = 2), International Space Station (ISS) (n = 11), and the ground based analog NEEMO (n = 6) (Smith et al. 2004). (b) Total antioxidant capacity after space flight for Mir (n = 2) and ISS (n = 11). [59,64].
