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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).

Dr. Lei Li is an experienced gastroenterologist and endoscopist with over 20 years of clinical experience. He specializes in endoscopic diagnosis of early gastric cancer and early colorectal cancer, and therapeutic surgery in upper and lower endoscopy, including EMR, ESD, ESE, POEM, ERCP, etc. Dr. Li received his Ph.D. in Gastroenterology from Shanghai Jiao Tong University School of Medicine. He later underwent his postdoctoral research training in Department of Surgery, University of Hong Kong (China). Dr. Li served as Vice Professor at the Department of Gastroenterology of Shanghai Ninth People’s Hospital and Shanghai General Hospital (China). He obtained his clinical research fellowship in ERCP Group at Medical Center, Indiana University-Purdue University at Indianapolis (U.S.). Dr. Li had worked as a  visiting scholar in the University of Texas M.D. Anderson Cancer Center (U.S.). He is an active member of Gastroenterological Endoscopy Association in Shanghai Medical Association, Gastroenterological Endoscopy committee in Shanghai Anticancer Association, Committee of Gastroenterology in Shanghai Non-government Medical Institutions Association (China). Dr. Li is certified as one of vice chairmen and a secretary-general by Committee of Gastroenterology in Chinese Non-government Medical Institutions Association (China).

Dr. Akiko Natalie Tomonari is a foreign-trained Gastroenterologist with over 15 years clinical experience. She specializes in hepatology, gastroenterology, and endoscopy procedures. She can treat patients with a broad range of hepatic diseases including viral, autoimmune, metabolic hepatitis and has special interest in gastroenterology, hepatology, upper and lower endoscopy screenings and procedures. Dr. Akiko graduated from Chiba University School of Medicine (Japan). She is certified MD in Japan and is board-certified member of the Japanese Society of Internal Medicine and the Japanese Society of Gastroenterology. She is also a member of the Japanese Gastroenterological Endoscopy Society, the Japanese Society of Hepatology, the Japanese Society of Neurogastroenterology and the Japanese Gastroenterological Association. She is also author of many peer-reviewed medical articles, published in international journals.