Hannun, R.M, A.G Al- Goubori, and M.A AL-Equabi. 2017. “The Relation Between Oxygen Therapy Duration and Free Radical Generation In Infants With Bronchiolitis”. Ibn AL-Haitham Journal For Pure and Applied Sciences 19 (1): 71-79. https://jih.uobaghdad.edu.iq/index.php/j/article/view/1537.