Jo YG, Lee TH, Cho HD, Park SH, Park JM, Cho YS, Jung Y, Chung IK, Choi HJ, Moon JH, Cha SW, Cho YD, Kim SJ
BACKGROUND/AIMS: There are few data supporting the diagnostic yield of brush cytology depending on the order of cytologic preparation method or the location or shape of tumors in biliary strictures....