Fig. 2
From: The dynamic monitoring of CEA in response to chemotherapy and prognosis of mCRC patients
CEA change patterns affected on overall survival (a) and progression-free survival (b). Group A (Blue Curve): patients who had an initial fast CEA decrease that then turned into a slow increase; Group B (Green Curve): patients who had an initial slow CEA decrease that then turned into a slow increase; Group C (Orange Curve): patients who had a continually slow CEA increase; Group D (Purple Curve): patients who had a continually fast CEA increase; Group E (Red Curve): patients who had an initial fast CEA decrease that then turned into a fast increase