Krumbiegel, P Diagnosis of Helicobacter pylori infection in children: is the 15N urine test more reliable than the 13C breath test? [electronic resource] - Scandinavian journal of gastroenterology Apr 2000 - 353-8 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0036-5521 Standard No.: 10.1080/003655200750023903 doi Subjects--Topical Terms: AdultBreath TestsCarbon IsotopesChildChild, PreschoolFemaleHelicobacter Infections--diagnosisHelicobacter pyloriHumansMaleMiddle AgedNitrogen IsotopesUrea--analysisUrinalysis--methods