論文（英文）
Niikura R, Hirata Y, Suzuki N, Yamada A, Hayakawa Y, Suzuki H, Yamamoto S, Nakata R, Komatsu J, Okamoto M, Kodaira M, Shinozaki T, Fujishiro M, Watanabe T, Koike K. Colonoscopy reduces colorectal cancer mortality: a multicenter, long-term, colonoscopy-based cohort study
Niikura R, Hirata Y, Suzuki N, Yamada A, Hayakawa Y, Suzuki H, Yamamoto S, Nakata R, Komatsu J, Okamoto M, Kodaira M, Shinozaki T, Fujishiro M, Watanabe T, Koike K. Colonoscopy reduces colorectal cancer mortality: a multicenter, long-term, colonoscopy-based cohort study. PLoS One. 2017;12(9):e0185294.