RT Journal Article SR Electronic T1 Histological patchiness and sparing of the rectum in ulcerative colitis: refuting the dogma. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 354 OP 355 DO 10.1136/jcp.50.4.354-b VO 50 IS 4 A1 C N Bernstein A1 F Shanahan A1 W M Weinstein YR 1997 UL http://jcp.bmj.com/content/50/4/354.2.abstract AB