TY - JOUR AU - Layfield, L J; Dodd, L; Factor, R TI - Malignancy risk associated with diagnostic categories defined by the Papanicolaou Society of Cytopathology pancreaticobiliary guidelines JO - Cancer Cytopathol VL - 122 PY - 2014 DO - 10.1002/cncy.21386 SP - 420 EP - 427 N1 - et al. ER -