title: Is there a "Barrett's iceberg?".
authors.forename: Nicholas
authors.initials: N
authors.lastname: Shaheen
mesh_terms: D001471:Barrett Esophagus / Q000150:complications / Q000453:epidemiology*; D004938:Esophageal Neoplasms / Q000209:etiology*; D006801:Humans; D015995:Prevalence