H. Khalaf, S., صبحی, Ghaze, S. and شاکر 2009. Investigation of the virulence factors of Kpneumoniae isolated from cases of nasal cavity inflammation. Journal of Education and Science (JES). 22, 4 (Dec. 2009), 1–9. DOI:https://doi.org/10.33899/edusj.2009.57913.