%0 Journal Article %A Johannes Blom %T Once-only flexible sigmoidoscopy screening for adults aged 55–64 years old reduces the incidence of colorectal cancer and colorectal cancer deaths %D 2010 %R 10.1136/ebm1104 %J Evidence Based Medicine %P 155-156 %V 15 %N 5 %U https://ebm.bmj.com/content/ebmed/15/5/155.full.pdf