Case Control Study
Copyright ©The Author(s) 2021.
World J Gastrointest Surg. Nov 27, 2021; 13(11): 1361-1371
Published online Nov 27, 2021. doi: 10.4240/wjgs.v13.i11.1361
Figure 1
Figure 1 Forest plot. LNs: Lymph nodes; CEA: Carcinoembryonic antigen.