A vanishing superficial depressed colorectal lesion in a patient with ulcerative colitis Takahiro Utsumi, Mineo Iwatate, Yasushi Sano, Gastrointestinal endoscopy, Feb 12 2018, pii: S0016-5107(18)30126-3. PMID: 29476841 DOI: 10.1016/j.gie.2018.02.012., Feb 21 2018.
