Conrad, Rachel Cytopathology of the pancreatobiliary tract-the agony, and sometimes, the ease of it. [electronic resource] - Journal of gastrointestinal oncology Jun 2013 - 210-9 p. digital Publication Type: Journal Article ISSN: 2078-6891 Standard No.: 10.3978/j.issn.2078-6891.2012.022 doi