Colorectal cancer screening. Randomised trials of flexible sigmoidoscopy.
Atkin
Wendy
W
Kralj-Hans
Ines
I
Wardle
Jane
J
Duffy
Stephen
S
D015179:Colorectal Neoplasms / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening / Q000379:methods; D016032:Randomized Controlled Trials as Topic; D012812:Sigmoidoscopy