Chen, X. Y., van der Hulst, R. W., Bruno, M. J., van der Ende, A., Xiao, S. D., Tytgat, G. N., & Ten Kate, F. J. (1999). Interobserver variation in the histopathological scoring of Helicobacter pylori related gastritis.

Chen, X Y., R W. van der Hulst, M J. Bruno, A. van der Ende, S D. Xiao, G N. Tytgat, and F J. Ten Kate. Interobserver Variation in the Histopathological Scoring of Helicobacter Pylori Related Gastritis. 1999.

Chen, X Y., et al. Interobserver Variation in the Histopathological Scoring of Helicobacter Pylori Related Gastritis. 1999.