Fig. 3From: Dynamic change of serum CA19–9 levels in benign and malignant patients with obstructive jaundice after biliary drainage and new correction formulasReceiver Operating Characteristic (ROC) curves of CA19–9 before biliary drainage (blue line), CA19–9 after biliary drainage (red line) and CA19–9 by correction formulas (green line) in distinguishing benign and malignant lesionsBack to article page