Effect of long-term vitamin E and selenium supplementation on urine F2-isoprostanes, a biomarker of oxidative stress
Keywords: F2-IsoP; 8-iso-prostaglandin F2-alpha; COPD; chronic obstructive pulmonary disease; RAS; The Respiratory Ancillary Study to SELECT; SELECT; The Selenium and Vitamin E Cancer Prevention Trial; ELISA; enzyme linked immunoassay; BMI; body mass index; FEV1; f