Risk factors for synchronous high-risk polyps in patients with colorectal cancer oleh Degao He, Degao He, Degao He, Degao He, Junguo Chen, Junguo Chen, Junguo Chen, Xuefei Jiang, Xuefei Jiang, Hao Chen, Hao Chen, Hao Chen, Juanni Huang, Zexian Chen, Zexian Chen, Zexian Chen