[High risk population: the stress for screening and prevention of colorectal cancer].
Fang
Jing-yuan
JY
jingyuanfang@yahoo.com
Shen
Lei
L
Sun
Dan-feng
DF
D015179:Colorectal Neoplasms / Q000175:diagnosis / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening