Abdullah, Mazin Mehdi, and Wael Mohammed Mahdi. 2025. “Isolation and Identification of Bacteria from Respiratory Tract and Phenotypic and Molecular Investigation of Hla Gene Bacteria in Staphylococcus Aureus Isolated ”. Samarra Journal of Pure and Applied Science 7 (3):152-62. https://doi.org/10.54153/sjpas.2025.v7i3.1091.