We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleWater source as risk factor for Helicobacter pylori infection in Peruvian children. Gastrointestinal Physiology Working Group.AuthorsKlein PD; Graham DY; Gaillour A; Opekun AR; Smith EOPublicationLancet (London, England), 1991, Vol 337, Issue 8756, p1503ISSN0140-6736Publication typearticleDOI10.1016/0140-6736(91)93196-g