%0 Journal Article %T Breaks and maintenance work in the water distribution systems and gastrointestinal illness: a cohort study %A Nygård, Karin %A Wahl, Erik %A Krogh, Truls %A Tveit, Odd Atle %A Bøhleng, Erik %A Tverdal, Aage %A Aavitsland, Preben %J International Journal of Epidemiology %V 36 %N 4 %P 873-880 %@ 0300-5771 %D 2007-08-01 %I Oxford University Press %~ DeepDyve