Clinical and pathological features of advanced rectal cancer with submesenteric root lymph node metastasis: Meta-analysis

Figure 1 Document retrieval flow chart. ¹Consider, if feasible to do so, reporting the number of records identified from each database or register searched (rather than the total number across all databases/registers). ²If automation tools were used, indicate how many records were excluded by a human and how many were excluded by automation tools.