title: Through the looking glass: a journey toward optimal endoscopic assessment of disease activity in ulcerative colitis.
authors.forename: Reena
authors.initials: R
authors.lastname: Khanna
authors.forename: Brian G
authors.initials: BG
authors.lastname: Feagan
mesh_terms: D003093:Colitis, Ulcerative / Q000175:diagnosis* / Q000473:pathology*; D003113:Colonoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D012720:Severity of Illness Index