Veiga, NélioPereira, CarlosResende, CarlosAmaral, OdeteFerreira, ManuelaNelas, PaulaChaves, ClaudiaDuarte, JoãoCirnes, LuisMachado, José CarlosFerreira, PaulaCorreia, Ilídio J.2016-09-192016-09-192015-05-26Veiga, N., Pereira, C., Resende, C., Amaral, O., Ferreira, M., Nelas, P., … Correia, I. J. (2015). Oral and gastric helicobacter pylori: Effects and associations. PLoS ONE, 10(5), e0126923. http://doi.org/10.1371/journal.pone.0126923http://hdl.handle.net/10400.19/3340This study consisted in the comparison of the prevalence of Helicobacter pylori (H. pylori) present in the stomach and in saliva of a sample of Portuguese adolescents and the assessment of the association between H. pylori infection with socio-demographic variables and prevalence of dental caries.engAdolescentChildDNA, BacterialDemographyFemaleHelicobacter InfectionsHelicobacter pyloriHumansMaleMouthPolymerase Chain ReactionSensitivity and SpecificityStomachYoung Adultjournal article10.1371/journal.pone.0126923