NORCCAP: A randomised trial to assess the safety and efficacy of carbon dioxide versus air insufflation in colonoscopy

Bretthauer M, Thiis-Evensen E, Huppertz-Hauss G, Gisselsson L, Grotmol T, Skovlund E, Hoff G.
NORCCAP (Norwegian Colorectal Cancer Prevention): A randomised trial to assess the safety and efficacy of carbon dioxide versus air insufflation in colonoscopy.
GUT 2002;50:604-7