M. Khalaf M, Alkotaji M. Pulmonary surfactant in COVID-19; A role in etiology and treatment. Iraqi J. Pharm. [Internet]. 2020 Dec. 31 [cited 2025 Aug. 4];17(1):115-34. Available from: https://rjps.uomosul.edu.iq/index.php/iphr/article/view/21544