Farahani P, Halabian R, Vahedi E, Salimian J. Increased Genes Expression Levels of Cytokines Related to Th17/Treg Cells in Peripheral Blood Mononuclear Cell Correlate with Clinical Severity in COPD and Mustard Gas-exposed Patients. Iran J Allergy Asthma Immunol. 2017;16(5):396-403.