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States V, O'Brien S, Rai JP, Roberts HL, Paas M, Feagins K, Pierce EJ, Baumgartner RN, Galandiuk S. Pyoderma Gangrenosum in Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis. Digestive diseases and sciences. 2020 Dec;65(65). 2675-2685.
Abstract
Pyoderma gangrenosum (PG) is an uncommon but severe extra-intestinal manifestation (EIM) of inflammatory bowel disease (IBD). The incidence and risk factors for PG are disputed.