Guest Editors: Leigh Kelliher and Chris Jones (Department of Anaesthesia, Royal Surrey Hospital NHS Foundation Trust, Surrey, UK)

Guest Editor: Zhiwei Yu (Center for Digestive Disease, the Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China)

Guest Editors: Changhua Zhang and Liang Li (The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China)

Guest Editors: Janindra Warusavitarne (St. Mark's Hospital, Harrow, UK); Roel Hompes (Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands)

Guest Editors: Chris Jones (Royal Surrey County Hospital, UCL, London, UK); Chuangqi Chen (The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China); Xuefu Zhou (The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China)