Fig. 1From: Risk factors affecting prognosis in metachronous liver metastases from WHO classification G1 and G2 gastroenteropancreatic neuroendocrine tumors after initial R0 surgical resectionOverall survival (OS) and time to relapse (TTR) curves stratified by different variables in 108 patients with hepatic metastatic GEP-NET disease. OS curves stratified by all patients (a), WHO grade (b), treatment modality (c); TTR curves, by WHO grade (d)Back to article page