Farahabadi A, Akbari M, Amini Pishva A, Zendedel A, Arabkheradmand A, Beyer C, Dashti N, Hassanzadeh G. Effect of Progesterone Therapy on TNF-α and iNOS Gene Expression in Spinal Cord Injury Model. Acta Med Iran. 2016;54(6):345-351.