TY - JOUR T1 - A multicentre review of acute upper gastrointestinal bleeding; a raised urea:creatinine ratio aids diagnosis JF - Clinical Medicine JO - Clin Med SP - 3 LP - 4 DO - 10.7861/clinmedicine.19-3-s3 VL - 19 IS - Suppl 3 AU - Deevia Kotecha AU - Jason Mak AU - Neel Sharma AU - Ralph Boulton AU - Benjamin Disney AU - Neeraj Bhala AU - Ajay Verma Y1 - 2019/06/01 UR - http://www.rcpjournals.org/content/19/Suppl_3/3.abstract ER -