AL-ABDALI, Intisar Hameed Ali. Efflux-Mediated Synergy and Preserved in Vitro Selectivity of Zinc Oxide Nanoparticle–Ampicillin Combinations against Multidrug-Resistant Klebsiella Pneumoniae and Pseudomonas Aeruginosa. NIU Journal of Health Sciences, [S.l.], v. 12, n. 2, p. 153-178, sep. 2026. ISSN 3136-6457. Available at: <https://kampalajournals.ac.ug/ojs/index.php/NIUJHS/article/view/2743>. Date accessed: 12 oct. 2026. doi: https://doi.org/10.58709/niujhs.v12i2.2743.