• Director of Endoscopy, Department of Gastroenterology, Public Tertiary Hospital

• Member of Early Stage Cancer Branch under National Digestive Endoscopy Society

• Deputy Chairman of Shanghai Digestive Endoscopy Society

• Head of Early Cancer Coordination Group of Shanghai Digestive Endoscopy Society

• Member of Asia Pacific NBI Training Group

• Member of Endoscopy Group under Chinese Anti-cancer Association

• Editor of Journal of Digestive Diseases, Chinese Journal of Digestive Endoscopy, Chinese Journal of Gastrointestinal Endoscopy