title: Seasonality in duodenal ulcer disease: possible relationship with circannually cycling neurons enclosed in the biological clock.
authors.forename: K
authors.initials: K
authors.lastname: Tivon
authors.forename: P
authors.initials: P
authors.lastname: Cohen
mesh_terms: D001683:Biological Clocks / Q000502:physiology*; D001921:Brain / Q000502:physiology*; D004381:Duodenal Ulcer / Q000453:epidemiology*; D006801:Humans; D009474:Neurons / Q000502:physiology; D012621:Seasons; D014667:Vasopressins / Q000502:physiology
chemical_list: D014667:Vasopressins