Z. AL-HASSO, M.; H. KHALAF, S. Resistance of some Gram Negative Enteric Bacilli Isolated from Lower Respiratory Tract Infections to β-lactam Antibiotics. Rafidain Journal of Science, [S. l.], v. 24, n. 12, p. 66–79, 2013. DOI: 10.33899/rjs.2013.80271. Disponível em: https://ojs.uomosul.edu.iq/index.php/rsci/article/view/47527. Acesso em: 15 sep. 2025.