Professor of the Fourth Military Medical University, Xi'an, China. Dr. Kaichun Wu serves as Vice-President of Chinese Medical Doctors Association Branch of Gastroenterology, Treasurer of the World Gastroenterology Organisation(WGO) and Vice President of Asia Pacific Association of Gastroenterology(APAGE). Professor Wu has published more than 300 papers in peer-reviewed journals. His research work on gastric cancer has received State First Class Award for Science and Technology in China.