Fig. 1From: Tumor-infiltrating mast cells predict prognosis and gemcitabine-based adjuvant chemotherapeutic benefit in biliary tract cancer patientsRepresentative images of tumor infiltrated mast cells (TIMs) staining in BTC. (a) Low TIMs infiltration. (b) High TIMs infiltration. Scale bar: 200 μm (original magnification × 400). (c, d) Kaplan-Meier analysis of overall survival in the discovery set and validation set. P value was calculated by log-rank testBack to article page