Fig. 1From: Development and validation of a nomogram for preoperative prediction of lymph node metastasis in early gastric cancerFlow diagram of patients enrollment and study design. *Patients admitted from 1 January 2015 to 31 December 2017 were included into the training cohort and from 1 January 2018 to 31 January 2019 into the validation cohort. GC: gastric cancer, LN: lymph node, LNM: lymph node metastasisBack to article page