Fig. 6

Kaplan–Meier analyses of recurrence-free and overall survival on the combination of CD44, CD44v6, and CD44v8-10 expression in extrahepatic CCA patients. a Recurrence-free and overall survival of patients according to the number of high or positive expression proteins. b Recurrence-free and overall survival of patients with zero or one high or positive expression marker versus high or positive expression of two or three markers