To investigate prospectively the association between colorectal cancer screening and subsequent risk of colorectal cancer death in a large-scale population-based cohort study (the JPHC study) with a 13-year follow-up period in Japan.
Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
