Abdel-Aziz M, Abass A, Zalata K, Abd Al-Galel T, Allam U, Karrouf G. Effect of Dexamethasone and Nigella sativa on Inducible Nitric Oxide Synthase in the Lungs of a Murine Model of Allergic Asthma. Iran J Allergy Asthma Immunol. 1;13(5):324-334.