Settle, T. (2014) “Effects of a Phytogenic Feed Additive Versus an Antibiotic Feed Additive on Oxidative Stress in Broiler Chicks and a Possible Mechanism Determined by Electron Spin Resonance”, International Journal of Poultry Science, 13(2), pp. 62–69. doi:10.3923/ijps.2014.62.69.