PT - JOURNAL ARTICLE AU - Youseung Kim AU - Varun Kesar AU - David LeBel TI - Unusual cause of colonic mucosal ulceration and gastrointestinal bleeding AID - 10.1136/flgastro-2021-101844 DP - 2021 Jun 14 TA - Frontline Gastroenterology PG - flgastro-2021-101844 4099 - http://fg.bmj.com/content/early/2021/06/14/flgastro-2021-101844.short 4100 - http://fg.bmj.com/content/early/2021/06/14/flgastro-2021-101844.full