1.Background and Objective
Ulcerative Colitis(UC),one of the two primary forms of idiopathic inflammatory bowel disease(IBD),remains enigmatic from the standpoint of etiopathogenesis.There has been significant progress in recent years in China.Presentation is usually with chronic watery or bloody diarrhoea,slimy rectal discharge and abdominal pain and tenesmus.The severity of these symptoms depends on the extent of the colitis.Extra-intestinal manifestations of ulcerative colitis include arthr...
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