List of Articles Urease-positive bacteria Open Access Article Abstract Page Full-Text 1 - Anti-microbial Effect of Nanoparticles on Non-Helicobacter Pylori Urease Positive Bacteria Isolated from Peptic Ulcer Patients Jamile Nowrozi Mahtab Golmohamadi Ghadikolaii Farzane Hosaini Shahram Agah Siamak Khaleghi