title: Helicobacter pylori infection rates in relation to age and social class in a population of Welsh men.
authors.forename: F
authors.initials: F
authors.lastname: Sitas
authors.forename: J
authors.initials: J
authors.lastname: Yarnell
authors.forename: D
authors.initials: D
authors.lastname: Forman
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D016481:Helicobacter Infections / Q000453:epidemiology*; D016480:Helicobacter pylori; D006801:Humans; D008019:Life Style; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012923:Social Class; D014852:Wales / Q000453:epidemiology