RT Journal Article SR Electronic T1 Diagnosing pancreatic ductal adenocarcinoma using plasma extracellular vesicle RNA profiles JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 404 OP 405 DO 10.1136/gutjnl-2019-319896 VO 69 IS 3 A1 Adam Enver Frampton A1 Elisa Giovannetti YR 2020 UL http://gut.bmj.com/content/69/3/404.abstract AB