List of Articles DPPH Open Access Article Abstract Page Full-Text 1 - Evaluation of the antioxidant activity of Thymus Using Electrochemical Methods and radical scavenging method Amir Yousefi Mohammad Hadi Givianrad Hessam Sepasi Tehrani Open Access Article Abstract Page Full-Text 2 - Alternations of Antioxidant Activity in Saliva in Smokers S. F. Nosratabadi R. Sariri P. Yaghmaei M. Taheri A. Ghadimi H. Ghafoori