title: [Cancer of the esophagus and the stomach: should we become resigned or investigate?].
authors.forename: E
authors.initials: E
authors.lastname: Roca
mesh_terms: D004938:Esophageal Neoplasms / Q000453:epidemiology*; D006801:Humans; D013274:Stomach Neoplasms / Q000453:epidemiology*