Dr Kang has provided medico-legal reports for personal injury and medical negligence cases since 2004 in all aspects of gastroenterology, on behalf of either the claimant, the defendant or jointly. His areas of expertise include GI cancers, endoscopy, oesophageal and gastric diseases, coeliac disease, inflammatory bowel diseases and irritable bowel syndrome. Dr Kang has written more than 200 papers in peer-reviewed journals, including co-authorship of the current British guidelines for Barrett's oesophagus.