title: Ethnicity as a risk factor for Helicobacter pylori infection and gastric cancer: environment, genetics, or both?
authors.forename: N J
authors.initials: NJ
authors.lastname: Talley
authors.forename: H H
authors.initials: HH
authors.lastname: Xia
mesh_terms: D000367:Age Factors; D000483:Alleles; D004777:Environment; D005006:Ethnicity; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D016481:Helicobacter Infections / Q000150:complications / Q000453:epidemiology; D016480:Helicobacter pylori; D006801:Humans; D009520:New Zealand / Q000453:epidemiology; D015995:Prevalence; D012307:Risk Factors; D012959:Socioeconomic Factors; D013274:Stomach Neoplasms / Q000453:epidemiology / Q000209:etiology