1. A153 STRATEGIES TO DISTINGUISH PERIANAL FISTULAS RELATED TO CROHN'S DISEASE FROM CRYPTOGLANDULAR DISEASE: SYSTEMATIC REVIEW WITH META-ANALYSIS. (21st February 2022) Authors: Chin Koon Siw, K; Engel, J; Visva, S; Mallick, R; Hart, A; de Buck van Overstraeten, A; McCurdy, J Journal: Journal of the Canadian Association of Gastroenterology Issue: Volume 5(2022)Supplement 1 Page Start: 28 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗