MAO, W.; CHEN, J.; PENG, T.-L.; YIN, X.-F.; CHEN, L.-Z.; CHEN, M.-H. Helicobacter Pylori Infection and Administration of Non-Steroidal Anti-Inflammatory Drugs down-Regulate the Expression of Gastrokine-1 in Gastric Mucosa. Turkish Journal of Gastroenterology 2012, 23, 212-219.