title: Childhood acquisition of Helicobacter pylori linked to reduced asthma and allergy risk.
authors.forename: Les
authors.initials: L
authors.lastname: Lang
mesh_terms: D017668:Age of Onset; D001249:Asthma / Q000453:epidemiology*; D002648:Child; D016481:Helicobacter Infections / Q000453:epidemiology*; D016480:Helicobacter pylori; D006801:Humans; D006967:Hypersensitivity / Q000453:epidemiology*; D012307:Risk Factors