PT - JOURNAL ARTICLE AU - Samuel Pannick AU - Katherine van Ree AU - Patrizia Cohen AU - Geoff Smith AU - John Martin TI - Occult gastrointestinal bleeding: two eyes are better than one AID - 10.1136/gutjnl-2018-318095 DP - 2019 Feb 01 TA - Gut PG - gutjnl-2018-318095 4099 - http://gut.bmj.com/content/early/2019/02/01/gutjnl-2018-318095.short 4100 - http://gut.bmj.com/content/early/2019/02/01/gutjnl-2018-318095.full