title: [Seasonal factors in the manifestation (periodicity) of peptic ulcer].
authors.forename: W
authors.initials: W
authors.lastname: KAUFMANN
mesh_terms: D006801:Humans; D010437:Peptic Ulcer; D010507:Periodicity; D012621:Seasons
keywords: PEPTIC ULCER
vernacular_title: Jahreszeitliche Faktoren der Manifestation (der Periodizität) des ulcus pepticum.