1. Cancer statistics,2016;R Siegel;CA Cancer J Clin,2016
2. Cancer statistics in China, 2015;W Chen;CA Cancer J Clin,2016
3. Plasma antioxidant enzymes and clastogenic factors as possible biomarkers of colorectal cancer risk;F Maffei;MutatRes,2011
4. Some current insights into oxidative stress;Z Durackova;Physio- lRes,2010
5. Total antioxidant status and severity of community-acquired pneumonia: are they correlated;K Katsoulis;Respiration,2005