Flexible sigmoidoscopy to prevent colorectal cancer.
Jansen
Jan B M J
JB
D015179:Colorectal Neoplasms / Q000453:epidemiology* / Q000401:mortality / Q000517:prevention & control*; D005243:Feces; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D009780:Occult Blood; D012812:Sigmoidoscopy