Avadhani V, Hacihasanoglu E, Memis B, Pehlivanoglu B, Hanley KZ, Krishnamurti U, Krasinskas AM, Osunkoya AO, Daniels LM, Freedman AA, Goodman M, Adsay V, Reid MD. Cytologic predictors of malignancy in bile duct brushings: a multi-reviewer analysis of 60 cases. Mod Pathol. 2017 09; 30(9):1273-1286.