in vitro anti-helicobacter pylori activity of extracts of selected medicinal plants from north west cameroon. | helicobacter pylori, a gram negative microaerophilic bacterium is a major etiological agent in duodenal, peptic and gastric ulcers. the growing problem of antibiotic resistance by the organism demands the search for novel compounds from plant based sources. | 2007 | 17913416 |