“…Criteria for referral were most commonly listed for suspected colorectal cancer[8, 10, 12, 13, 15-20, 22, 23, 25, 27, 28, 30, 31, 33, 35, 36, 38, 40]. Other GI conditions for which some referral criteria were found included suspected upper GI cancer[9, 24, 25, 27-30, 38, 39], hepatitis[11, 14, 26, 30], and functional disorders such as irritable bowel syndrome, dyspepsia, diarrhoea and constipation[21, 30, 32, 34, 37]. We found four papers on the management of a variety of important GI conditions, but they did not contain criteria for referral: inflammatory bowel disease[42], pancreatitis [43-44] and acute gastrointestinal blood loss[45].…”