Gastroscopy/Upper Endoscopy Colonoscopy Liver Biopsy Barium Meal MR Abdomen (magnetic resonance scan) pH/Impedance Study Endoscopic Retrograde Cholangio Pancreatography (ERCP) Oesophageal Manometry Intestinal Failure Biliary Atresia Autoimmune Hepatitis and Sclerosing Cholangitis Hepatitis B and C Liver Transplant Inflammatory Bowel Disease Coeliac Disease Gastrointestinal Bleeding
