*Michael Ristow et. al.: Antioxidants prevent health-promoting effects of physical exercise in humans. PNAS published online before print May 11, 2009, doi:10.1073/pnas.0903485106 | *Michael Ristow et. al.: Antioxidants prevent health-promoting effects of physical exercise in humans. PNAS published online before print May 11, 2009, doi:10.1073/pnas.0903485106 |