Sustaining the vitality of colonoscopy quality improvement programmes over time.

Seip B, Bretthauer M, Dahler S, Friestad J, Huppertz-Hauss G, Høie O, Kittang E, Nyhus S, Pallenschat J, Sandvei P, Stallemo A, Svendsen MV, Hoff G. Sustaining the vitality of colonoscopy quality improvement programmes over time. Experience from the Norwegian Gastronet programme.
Scand J Gastroenterol 2010;45:362-9