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APMIS : Acta Pathologica, Microbiologica, Et Immunologica Scandinavica|April 1, 1989
Mucosal cysts in Barrett's mucosa with dysplasiaC A Rubio, R H RiddellThe American Journal of Surgical Pathology|April 16, 1998
Histology of the stomach and duodenum in Crohn's diseaseC L Wright, R H RiddellJournal of Clinical Pathology|September 1, 1970
Trimethoprim as an additional selective agent in media for the isolation of N. gonorrhoeaeR H Riddell, A C BuckGut|July 1, 1979
Value of sigmoidoscopy and biopsy in detection of carcinoma and premalignant change in ulcerative colitisR H Riddell, B C MorsonPathology, Research and Practice|December 1, 1988
Atypical mitoses in dysplasias of the Barrett's mucosaC A Rubio, R H RiddellGastroenterology|September 1, 1981
The histologic appearance of dysplasia (precarcinomatous change) in Crohn's disease of the small and large intestineS Simpson, J Traube, R H RiddellGut|January 1, 1992
Distribution of collagenous colitis: utility of flexible sigmoidoscopyM Tanaka, G Mazzoleni, R H RiddellThe American Journal of Surgical Pathology|April 1, 1989
Bone core biopsies. Plastic or paraffin?L Vincic, S Weston, R H RiddellGut|May 1, 1992
Non-steroidal anti-inflammatory drugs as a possible cause of collagenous colitis: a case-control studyR H Riddell, M Tanaka, G MazzoleniJournal of Clinical Pathology|January 29, 2005
Perianal apocrine adenocarcinoma arising in a benign apocrine adenoma; first case report and review of the literatureK N MacNeill, R H Riddell, D GhazarianPageof 37