title: THE SEASONAL INCIDENCE OF BLEEDING FROM THE UPPER GASTROINTESTINAL TRACT.
mesh_terms: D002980:Climate; D004381:Duodenal Ulcer; D004739:England; D006470:Hemorrhage; D015994:Incidence; D010438:Peptic Ulcer Hemorrhage; D012621:Seasons; D013223:Statistics as Topic; D013276:Stomach Ulcer; D013696:Temperature; D041742:Upper Gastrointestinal Tract
keywords: CLIMATE; DUODENAL ULCER; ENGLAND; PEPTIC ULCER HEMORRHAGE; SEASONS; STATISTICS; STOMACH ULCER; TEMPERATURE