METHODS	Thirty-one patients with mild to moderate ulcerative colitis were subdivided into three groups , and treated with 2 g mesalazine in 30 mL ( group I , n = 10 ) , 4 g mesalazine in 60 mL ( group II , n = 12 ) or 1 g mesalazine in 100 mL ( group III , n = 9 ) .\