Detection of Helicobacter pylori in stool specimens by non-invasive antigen enzyme immunoassay in children: multicentre Italian study. Issue 7231 (5th February 2000) - Oderda, Giuseppina; Rapa, Anna; Ronchi, Barbara; Lerro, P; Pastore, Maria; Staiano, Annamaria; de'Angelis, G L; Strisciuglio, P