Qaddoori , Yasir Basim, et al. “The Relationship of Eosinophil Cationic Protein Eosinophil Count Ratio and Disease Severity in Allergic Asthma Patients ”. Journal of Biotechnology Research Center (JOBRC), vol. 15, no. 2, Dec. 2021, pp. 30-35, doi:10.24126/jobrc.2021.15.2.609.