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Dr. Lei Li is a chief physician, medical doctorate holder, and master's supervisor with over 30 years of professional experience in the field of gastroenterology and endoscopy. He focuses on the diagnosis and treatment of complex and critical digestive system diseases, with particular expertise in the minimally invasive endoscopic diagnosis and treatment of gastrointestinal and biliary-pancreatic diseases. Dr. Li is committed to the early detection of cancer and precancerous lesions through gastroscopy and colonoscopy, and has accumulated extensive experience in the diagnosis and treatment of gastrointestinal bleeding, acute and chronic abdominal pain, inflammatory bowel diseases, and various types of liver function damage. In addition, he is skilled in endoscopic minimally invasive surgery for gastrointestinal polyps, early gastrointestinal cancer, benign and malignant gastrointestinal stenosis, bile duct stones, biliary pancreatitis, obstructive jaundice due to biliary and pancreatic tumors, and internal hemorrhoids.

Dr. Lei Li obtained his doctoral degree from Shanghai Jiao Tong University School of Medicine and subsequently completed a postdoctoral degree at the University of Hong Kong Faculty of Medicine. He has worked for many years in the Department of Gastroenterology at Shanghai First People's Hospital and served as the deputy director of the Department of Gastroenterology at Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital. Dr. Li has been a visiting scholar at the Indiana University Medical Center and the University of Texas MD Anderson Cancer Center in the United States. He has taken responsibility for six research projects and talent programs, including those funded by the National Natural Science Foundation and the Shanghai Natural Science Foundation, and has published more than 50 papers in renowned domestic and international medical journals. He has received one second prize of the Shanghai Science and Technology Award and one second prize of the Ministry of Education Science and Technology Progress Award. Dr. Lei Li serves as the deputy director and secretary-general of the Digestive Disease Committee of the Chinese Non-Public Medical Institutions Association, a standing committee member of the Digestive Endoscopy Committee, the vice president of the Digestive Branch of the Shanghai Society of Medical Institutions, and a committee member of the Shanghai Medical Association Gastrointestinal Endoscopy Committee.

Dr. Helen Huang is a physician with nearly 20 years of clinical experience in gastroenterology. She excels in diagnosing and managing various gastrointestinal diseases and chronic conditions of the digestive system. She is skilled in digestive endoscopy procedures, including the screening and diagnosis of early gastrointestinal cancer under endoscopy and the endoscopic resection and treatment of various types of gastrointestinal polyps. Dr. Huang effectively handles a range of gastrointestinal disorders, such as gastroesophageal reflux disease, acute and chronic abdominal pain, bloating, diarrhea, constipation, inflammatory bowel disease (Crohn's disease and ulcerative colitis), and internal hemorrhoids.

Dr. Liu is a Chief Physician, Professor, MD and Doctoral Supervisor with nearly 40 years of clinical experience in gastroenterology. She specializes in the diagnosis and treatment of common and complex diseases of the digestive system (early-stage digestive tract tumors, Helicobacter pylori eradication, gastroesophageal reflux disease (GERD), constipation, inflammatory bowel disease (IBD), hepatic dysfunction, fatty liver, and dyspepsia). Dr. Liu is particularly skilled in gastrointestinal endoscopy, including diagnostic procedures (polyps, tumors, chronic gastritis) and therapeutic interventions (polypectomy, EMR).