RT Journal Article SR Electronic T1 Fine needle biopsy: cytology, histology or both? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 233 OP 236 DO 10.1136/gut.28.3.233 VO 28 IS 3 A1 M A Hall-Craggs A1 W R Lees YR 1987 UL http://gut.bmj.com/content/28/3/233.abstract AB