Dr. Ming-Jen Chen, born in 1967, is the chief of division of Gastroenterology and Hepatology ane the director of EBM center, Mackay Memorial Hospital, Taipei and an assocaited profession at Mackay Medical College. He graduated form China Medicine College in 1992. After two years of army service, then Dr Chen had completed his residency and GI fellowship program in MacKay Memorial Hospital in 1994-1999 and became an attending staff of gastroenterology since 1999. Dr. Chen joined the team work of Prof. Yu-Jen Chen for basic research and gained a medical master degree form Post Graduate Institute of Medicine, Taipei Medical University in 2006. His work and thesis under the supervision of Prof. Chen is “Caffeic acid phenethyl ester induces apoptosis of human pancreatic cancer cells involving caspase and mitochondrial dysfunction” and “ Caffeic acid phenethyl ester inhibits Epithelial-Mesenchymal Transition of human pancreatic cancer cells”. He had established a phenotype and epidemiology data of follicular gastritis in H. pylori infection and analyzed the correlation between “Endoscopic patterns and histopathologic features after eradication therapy in Helicobacter pylori-associated follicular gastritis”. Especially, he is interested in the specialized skills in diagnosis and treatment of GI cancers such as endoscopic submucosal dissection. Dr Chen also established several artificial, ex vivo and animal model for the training of advanced endoscopic procedures. Over the last 15 years, he has focused his scientific interests on the topics related to GI mucosal lesion and inflammation, Helicobacter pylori, esophageal cancer and gastric cancer, epithelial mesenchymal transition (EMT), peritoneal carcinomatosis, total parenteral nutrition and evidence based medicine.